certain organisms, like oak trees, grow gradually but do not change their basic shape and structure over time. other organisms, such as butterflies, undergo significant qualitative changes at different stages of development. to what central issue in developmental science does this most pertain?

Answers

Answer 1

Continuity refers to the idea that development proceeds gradually and incrementally, with no sudden or qualitative changes in the structure or function of an organism.

The idea of continuity is exemplified by the growth of oak trees, which slowly develop over time without undergoing significant changes in their basic structure. Also, continuity versus discontinuity is a fundamental question in developmental science, as it addresses the nature of developmental change and how it occurs over time.

On the other hand, refers to the idea that development proceeds through stages or steps, with significant qualitative changes in the structure or function of an organism occurring at different points in development.

To learn more about organism , here

brainly.com/question/12825206

#SPJ4


Related Questions

The major portion of seminal fluid is produced in the prostate gland. true or false

Answers

Answer: True

Explanation:

The seminal vesicles and prostate gland make a whitish fluid called seminal fluid, which mixes with sperm to form semen when a male is sexually stimulated.

A variety of genotypes and phenotypes in a population is useful because it
A) makes life more interesting.
B) allows the species to survive if the environment changes.
C) means that the gene pool is constant and unchanging.
D) makes genetic drift an unlikely occurrence.
E) will lead to nonrandom mating.

Answers

A variety of genotypes and phenotypes in a population is useful because it B) allows the species to survive if the environment changes.

Having a variety of genotypes and phenotypes in a population means that there is genetic diversity. This genetic diversity can be beneficial for the survival of a species if the environment changes. For example, if there is a sudden change in the environment, such as a new predator or a change in climate, individuals with certain genotypes or phenotypes may be better suited to survive and reproduce, ensuring the survival of the population as a whole. On the other hand, a lack of genetic diversity can make a population more susceptible to extinction in the face of environmental changes. Hence the correct option is B).

Learn more about genotypes : https://brainly.com/question/902712  

#SPJ11

an arrangement of microtubules located in the matrix of cilia and flagella is called the _

Answers

An arrangement of microtubules located in the matrix of cilia and flagella is called the axoneme.

The axoneme is the structural core of cilia and flagella, which are long, whip-like structures that protrude from the surface of cells. It consists of nine microtubule doublets that surround a central pair of microtubules, arranged in a cylindrical pattern.

The microtubules are connected by radial spokes and nexin links, which provide stability and flexibility to the axoneme. The movement of cilia and flagella is generated by the sliding of the microtubule doublets against each other, powered by the ATP-dependent activity of dynein motor proteins.

The axoneme is essential for many biological processes, including the motility of sperm cells, the clearance of mucus from the respiratory tract, and the movement of fluid in the female reproductive system.

To know more about microtubules refer here:

https://brainly.com/question/13186024#

#SPJ11

in the repair of a simple fracture, the fibrocartilaginous callus stage lasts at least ______. multiple choice question. 3 weeks 2 months 3 months 8 weeks

Answers

The fibrocartilaginous callus stage in the repair of a simple fracture usually lasts for about 3 weeks to 2 months.

During this stage, fibroblasts and chondroblasts produce fibrocartilage, which bridges the broken ends of the bone. The fibrocartilaginous callus is composed of collagen and cartilage, and it provides temporary stability to the fracture site.

The length of this stage can vary depending on factors such as the severity of the fracture, the age and health of the individual, and the location of the fracture.

Typically, the callus will eventually be replaced by bone tissue in a process known as ossification.

Learn more about the fibrocartilaginous callus stage at

https://brainly.com/question/30482727

#SPJ4

In the repair of a simple fracture, the fibrocartilaginous callus stage lasts at least 3 weeks. This stage is characterized by the formation of a soft callus made of fibrous tissue and cartilage, which serves as a temporary bridge between the broken bone ends.

Over time, this callus is replaced by a harder bone callus made of new bone tissue, leading to the final stage of bone remodeling.

A fibrocartilage callus is a transient collection of fibroblasts and chondroblasts that develops at the site of a fractured bone as the bone works to mend itself. The cells gradually disappear and go dormant, laying in the extracellular matrix that forms, which becomes the new bone. Usually 3 weeks following the fracture, the callus is the earliest indication of union that may be seen on x-rays. The development of calluses takes longer in adults than in youngsters, and in cancellous bones than in cortical ones.

To know more about fibrocartilaginous callus click here:

https://brainly.com/question/13641789

#SPJ11

_____ is/are a group of proteins such as interferons (in-the-fear-onz) and interleukins (in-ter-loo-kinz) released primarily by the t cells.

Answers

Interferons and interleukins, two proteins that belong to the class of cytokines and are primarily secreted by t cells, are two examples. A set of proteins such as interferons and interleukins generated predominantly by the T cells that act as intracellular signals to activate the immune response.

A class of proteins in the body called cytokines is crucial for enhancing the immune system. Types of cytokines found in the body include interferon and interleukin. In response to viral infection (and other stimuli), cells create and release a group of soluble glycoproteins known as interferons (IFNs).

To know more about cytokines, click here:

https://brainly.com/question/12199920

#SPJ4

Which sentence describes the cells of ground tissue in the nongreen parts of plants?
A. They have large vacuoles that store materials.
B. They consist of hollow tubes that transport materials.
OC. They have hairlike extensions that absorb water.
OD. They contain chloroplasts for photosynthesis.​

Answers

The non-green sections of plants, the ground tissue cells do not have chloroplasts for photosynthesis and do not have hollow tubes for material transfer.

A material is what?

Materials are the substances or mixtures that are utilised to build or make items. They are employed in a variety of sectors, including electronics, manufacturing, transportation, and construction, and they can be natural or synthetic.

Metals, polymers, ceramics, fabrics, woods, and composites are a few examples of materials. Each substance has distinctive physical and chemical characteristics that make them each ideal for particular uses. For instance, while plastics are regarded as having flexibility and capacity to be moulded into intricate designs, metals are frequently employed for their durability and strength.

The Science of materials is an investigation.

To know more about Materials visit :

https://brainly.com/question/30503992

#SPJ1

The answer is A. They have large vacuoles that store materials

the chordae tendineae attach to the lower surface of cusps of the ______ valve and prevent the valve from flipping into the atrium when the right ventricle is contracting.

Answers

The chordae tendineae attach to the lower surface of the cusps of the tricuspid valve and prevent the valve from flipping into the atrium when the right ventricle is contracting.

What is the importance of chordae tendineae attaching to the lower surface of cusps?

This is an important mechanism to ensure proper blood flow from the atrium to the ventricle and prevent backflow. On a separate note, pupillary refers to the size and response of the pupils, which are controlled by the autonomic nervous system. The atrium and ventricle are two of the four chambers of the heart, with the atrium receiving blood and the ventricle pumping it out to the rest of the body.

The chordae tendineae attach to the lower surface of the cusps of the tricuspid valve and prevent the valve from flipping into the atrium when the right ventricle is contracting. The term "pupillary" is not relevant to this topic, as it relates to the eye's pupil, not the heart. In summary, the chordae tendineae play a crucial role in ensuring the proper function of the tricuspid valve, connecting it to the right ventricle and preventing backflow into the atrium.

To know more about Chordae tendineae, visit:

https://brainly.com/question/15061075

#SPJ11

some people tested the same angles, but the blood drops look different. give two reasons that may account for this.

Answers

Some people tested the same angles but blood drops look different. Two reasons that may account for this are : Viscosity of the blood and Surface tension of the surface.

What are the reasons that blood drops look different when tested same angles?

There could be several reasons why blood drops from the same angles might look different, and two possibilities are:

Viscosity of the blood: The viscosity, or thickness, of the blood can affect the shape and size of the resulting blood drops. Blood that is more viscous will produce smaller, more rounded drops, while thinner blood will produce larger, more elongated drops.

Surface tension of the surface: The surface tension of the surface on which the blood lands can also affect the shape and appearance of resulting blood drops. A surface with high surface tension, such as a smooth, non-porous surface, will tend to produce smaller, more rounded drops with less spatter.

To know more about blood, refer

https://brainly.com/question/15289194

#SPJ1

the petrified forest of arizona includes a great diversity of fossils. in the picture above, paleontologist randall irmis excavates a plate from a specimen of buettneria. based on the discussions of evolution in the class materials, it is likely that: group of answer choices buettneria is essentially identical to species still alive today. buettneria is related to, but recognizably different from, species still alive today. buettneria is completely unrelated to species still alive today.

Answers

Based on the discussions of evolution in class materials, it is likely that Buettneria is related to, but recognizably different from, species still alive today. This is because the theory of evolution suggests that organisms change over time through the process of natural selection, which results in the development of new species from existing ones.


Based on the discussions of evolution in the class materials, it is likely that Buettneria is related to, but recognizably different from, species still alive today. Evolution suggests that species change over time through processes such as natural selection and genetic drift, leading to the development of new species from ancestral forms. Consequently, while Buettneria may share a common ancestor with some living species, it would likely exhibit noticeable differences due to the evolutionary processes that have occurred since its existence.

Therefore, while Buettneria may share certain similarities with modern species, it is likely to have distinct characteristics that differentiate it from them. Additionally, the fact that the petrified forest of Arizona includes a great diversity of fossils suggests that there have been many different species that have lived and evolved over time, further supporting the idea of evolutionary change.

For more such questions on theory of evolution , Visit:

https://brainly.com/question/16215608

#SPJ11

Dr. Jackson is doing research in which she examines whether a drug effect is different depending on whether the drug is given orally or rectally. We might say that she is doing a study involvinga. neurotherapy.b. neurochemistry.c. behavioral neuroscience.d. pharmacokinetics.e. neuropharmacology.

Answers

Dr. Jackson is studying pharmacokinetics, which is the study of how drugs are absorbed, distributed, metabolized, and eliminated by the body. Option D is the correct answer.

Specifically, she is examining how the route of administration (oral vs rectal) affects the drug's effect. This is an important area of research, as different routes of administration can lead to different pharmacokinetic profiles and may affect the therapeutic efficacy and toxicity of a drug.

Understanding the pharmacokinetics of drugs is crucial for determining the appropriate dosage and administration method for a particular drug, as well as for developing new drugs with optimal pharmacokinetic properties.

Learn more about the drug effect at

https://brainly.com/question/13636253

#SPJ4

Based on the information provided, we can conclude that Dr. Jackson is doing a study involving neuropharmacology. This is because she is researching the effects of a drug on the nervous system and examining how it is absorbed and processed by the body, which falls under the field of neuropharmacology.

Specifically, she is investigating whether the method of administration (oral or rectal) affects the drug's effectiveness, which is a common area of study within neuropharmacology.

The study of how medicines alter brain processes and the neural pathways by which they affect behaviour is known as neuropharmacology. Behavioural and molecular pharmacology are the two primary subfields of this field. Neuropsychopharmacology, which includes the investigation of how drug abuse and dependence influence the brain, is the main emphasis of behavioural neuropharmacology. With the ultimate goal of creating medications that have positive impacts on neurological function, molecular neuropharmacology studies neurons and their neurochemical interactions. These two disciplines are intertwined because they both focus on the interplay of neurotransmitters, neuropeptides, neurohormones, neuromodulators, enzymes, second messengers, co-transporters, ion channels, and receptor proteins in the central and peripheral nervous systems.

To know more about neuropharmacology click here:

https://brainly.com/question/29054312

#SPJ11

A liver cell differs from a skin cell in that they both have different DNA molecules in their nuclei. That's how they function differently from each other.
False/true

Answers

A liver cell differs from a skin cell in that they both have different DNA molecules in their nuclei. That's how they function differently from each other. This statement is false.

Difference between liver cells and skin cells

While it is true that liver cells and skin cells have different functions, the DNA molecules in their nuclei are actually the same. The differences in their functions come from differences in gene expression, which means that certain genes are turned on or off in each cell type. The origin of the cells (i.e. where they come from in the body during development) determines which genes are expressed and ultimately their function.

Both liver cells and skin cells have the same DNA in their nuclei since they come from the same organism. They function differently from each other due to the expression of different genes within their DNA, which leads to the production of specific proteins needed for their respective functions. The origin of these cells lies in the same DNA, but the specific gene expression determines their specialized roles in the body.

To know more about Cells, visit:

https://brainly.com/question/30046049

#SPJ11

Mount Pinatubo ejected large volumes of gas and ash into the atmosphere during its eruption in June 1991. Scientists measured an average global temperature decline of about 2% during the next year. if the average temperature of an area was 25*C prior to the eruption what was the temperature the next year?

Answers

Following the Pinatubo explosion, the region's average temperature would be about 24.5°C.

What is a region?

Areas are utilised in a variety of disciplines, including geography, physics, engineering, and architecture. In these sectors, the term "area" refers to the size of a surface, such as a building's floor area or a three-dimensional object's surface area.

The size of an object with three dimensions or the pace of change of an equation in mathematics can both be calculated using areas. A region's or surface's size in two dimensions is expressed as an area. Usually, it is expressed in square units like square metres or square feet.

The extent of a region or shape.

To know more about area visit :

https://brainly.com/question/27683633

#SPJ1

all of the ct of skeletal muscle create fibers which will converge to anchor the muscle to bone. the histologic name of this tissue is

Answers

The histologic name of the tissue that consists of the fibers that converge to anchor the skeletal muscle to bone is called tendon tissue.

Tendons are made up of dense connective tissue that connects muscle fibers to bones, allowing for the transmission of force and movement. The fibers of the skeletal muscle converge to form tendons, which then anchor the muscle to the bone, enabling movement and providing stability. They are composed of densely packed collagen fibers and other extracellular matrix components that provide strength and flexibility to the tissue. Tendons may also attach muscles to structures such as the eyeball.

know more about tissue here: https://brainly.com/question/12461686

#SPJ11

which of these cells organelles is MOST like a post office in that it receives, packages/modifies, than sends proteins and other cellular material?

A. The mitochondria
B. The golgi body

Answers

Answer The Golgi Body

Explanation:

The answer is the Golgi Apparatus because it gets nutrients from the Endoplasmic Reticulum, their packages modify and then send the proteins to the lysosomes. It is not Mitocondria because that organelle only creates glucose which the cell intakes.

melanosomes most likely move along microtubules that originate in and radiate from the

Answers

Melanosomes most likely move along microtubules that originate in and radiate from the as Melanosomes are organelles responsible for producing and storing melanin pigment in skin cells.

These melanosomes move along microtubules, which are a part of the cell's cytoskeleton. Microtubules originate from and radiate outwards from the cell's centrosome, which acts as the main organizing center for microtubules in the cell.

This movement is crucial for the distribution of melanin within the skin cells, which determines skin pigmentation. The regulation of this process is essential for preventing skin disorders, such as albinism or hyperpigmentation.

Overall, the movement of melanosomes along microtubules plays a critical role in the maintenance of skin pigmentation and health.

To know more about skin pigmentation click on below link:

https://brainly.com/question/28152000#

#SPJ11

energy is transferred along food chains from one stage to the next. which statement best explains how the energy is transferred? responses

Answers

From energy producers to energy consumers. The transfer of energy from producers to consumers is explained. All creatures in the food chain receive energy indirectly from producers like plants.

In food webs, energy is passed between organisms from producers to consumers. Organisms utilise the energy to accomplish challenging activities. The majority of the energy found in food webs comes from the sun and is turned (processed) into chemical energy by plants during the process of photosynthesis. Energy is given to customers, who then use it to make food.  A food web demonstrates how energy is moved throughout an ecosystem. For instance, plants are given access to solar energy so they can transform it into chemical energy.

To know more about energy, click here:

https://brainly.com/question/1932868

#SPJ4

Energy is transferred along food chains from one stage to the next. Which statement best explains how the energy is transferred?

in the diagram below the northem hemisphere is having days that are
O shorter than the days in the southem hemisphere
hotter than the days in the southem hemisphere
O equal to the days in the southem hemisphere
them hemisphere

Answers

In the graphic below, the number of days in the northern hemisphere is equal to the number of days in the southern hemisphere.

What is hemisphere?

One half of a sphere is known as a hemisphere. It is made by dividing a sphere in half along a plane that runs through the middle of the object. The northern hemisphere & the southern hemisphere are names for the two sides of the sphere.

The equator divides the world into the northern and southern hemispheres, which are each situated north of it. The equator, a hypothetical line circling the centre of the planet, separates the two hemispheres.

Because of the tilt of the Earth's axis, the northern and southern hemispheres experience different temperatures and seasons. While the southern hemisphere sees winter, the northern hemisphere has summer.

The majority of the world's population resides in the northern hemisphere, yet some of the planet's most isolated islands and regions are found there.

In addition, the hemispheres have various languages, civilizations, and geographical features. The international date line, which links the two hemispheres of the planet, signifies the shift in time zones that occurs when travelling between them.

To learn more about hemisphere, visit:

brainly.com/question/29123159

#SPJ9

based on the passage, to which phylum does enterobacter most likely belong?a.actinobacteriab.firmiculatec.bacteroideted.proteobacteria

Answers

Based on the passage provided, Enterobacter most likely belongs to the phylum Proteobacteria. Option C is correct.

The phylum Proteobacteria is one of the major phyla of bacteria and is known for its diversity and wide-ranging ecological roles. Enterobacter is a genus of Gram-negative bacteria that is commonly found in the environment, as well as in the gastrointestinal tracts of humans and animals. Enterobacter is known to belong to the phylum Proteobacteria based on its characteristic Gram-negative cell wall structure and other genetic and biochemical characteristics.

Based on the information provided in the passage, the most likely phylum for Enterobacter is Proteobacteria, as it is a Gram-negative bacterium commonly found in the environment and gastrointestinal tracts of humans and animals, which are characteristic features of the phylum Proteobacteria.

Learn more about “ Proteobacteria “ visit here;

https://brainly.com/question/30970873

#SPJ4

Based on the passage, Enterobacter most likely belongs to the phylum Proteobacteria.

This is because the passage mentions that Enterobacter is a genus of Gram-negative bacteria, which is a characteristic of the Proteobacteria phylum.

Additionally, the passage states that Enterobacter is commonly found in the environment and is sometimes associated with infections in humans, both of which are also characteristics of the Proteobacteria phylum.

While it is possible that Enterobacter could belong to another phylum, such as Actinobacteria or Bacteroidetes, the information provided in the passage suggests that Proteobacteria is the most likely classification.

Firmiculate is unlikely to be the correct answer as this phylum is characterized by Gram-positive bacteria, which Enterobacter is not.

Therefore, the correct option is D, proteobacteria.

For more such answers on Proteobacteria

https://brainly.com/question/15085438

#SPJ11

Several histones can bind to one dna molecule, forming a repeating unit called aa. ribozymeb. nucleosomec. topoisomerased. nucleoside

Answers

Several histones can bind to one DNA molecule, forming a repeating unit called a nucleosome, the correct option is (b).

Histones are proteins that form complexes with DNA to create chromatin. Several histones can bind to a single DNA molecule, resulting in the formation of a repeating unit called a nucleosome. Each nucleosome contains two copies of four types of histones, called H2A, H2B, H3, and H4, which form an octamer.

DNA wraps around this octamer of histones about 1.65 times in a left-handed superhelix to form a "beads on a string" structure. These nucleosomes are further compacted and organized into higher-order structures to form chromatin, which is a dynamic structure that regulates gene expression, DNA replication, and repair, the correct option is (b).

To learn more about histones the link:

https://brainly.com/question/13647139

#SPJ4

The complete question is:

Several histones can bind to one DNA molecule, forming a repeating unit called a

a. ribozyme

b. nucleosome

c. topoisomerase

d. nucleoside

true or false once a couple makes a commitment to an intimate relationship is made by a couple, the relationship culture becomes static.

Answers

The statement "once a couple makes a commitment to an intimate relationship is made by a couple, the relationship culture becomes static." is false.

A relationship culture is not static even after a commitment is made because it evolves continuously based on various factors. Couples need to adapt to changes in their lives, such as personal growth, external circumstances, and evolving communication styles.

As a result, relationship culture requires ongoing effort and nurturing to maintain a healthy and successful partnership. Open communication, understanding, and flexibility are crucial components for a couple to effectively navigate changes and challenges throughout their relationship.

To know more about personal growth click on below link:

https://brainly.com/question/31453516#

#SPJ11

why it is important for humans to understand our impact on the environment.
whoever answer get 50 point and brainliest.

Answers

Understanding our impact on the environment is crucial for several reasons:

1. Sustainability: Our planet has finite resources, and if we continue to use them at an unsustainable rate, we will eventually run out. By understanding our impact on the environment, we can take actions to reduce our resource consumption, protect wildlife, and preserve ecosystems for future generations.

2. Health: The environment can have a significant impact on human health. Air pollution, water pollution, and exposure to toxic chemicals can all have negative health effects. By understanding our impact on the environment, we can take steps to reduce pollution and protect public health.

3. Economic stability: The environment is closely tied to the economy, and environmental degradation can have negative economic consequences. For example, climate change can lead to more frequent natural disasters, which can be costly for governments and businesses. By understanding our impact on the environment, we can take steps to reduce the economic costs of environmental damage.

4. Ethics and morality: Many people believe that it is our moral obligation to protect the environment for future generations and for the sake of other species that share the planet with us. By understanding our impact on the environment, we can take responsibility for our actions and make choices that align with our ethical and moral values.

In summary, understanding our impact on the environment is important for ensuring sustainability, protecting human health, maintaining economic stability, and upholding ethical and moral values.

which of the following physiological alterations is/are commonly observed in aki? select all that apply. group of answer choices increased urine output metabolic alkalosis hypoparathyroidism fluid accumulation decreased urine output metabolic acidosis decreased energy expenditure

Answers

Physiological alterations commonly observed in AKI (Acute Kidney Injury) are: Decreased urine output, Fluid accumulation, Metabolic acidosis,

Decreased urine output: This occurs because the kidneys are not able to filter and eliminate waste products and excess fluid from the body properly, leading to a decrease in urine production.

Fluid accumulation: This occurs due to the inability of the kidneys to regulate fluid balance, leading to an accumulation of fluid in the body.

Metabolic acidosis: This occurs due to the buildup of acidic waste products in the blood that the kidneys are not able to eliminate, leading to an imbalance in the body's acid-base balance and metabolic processes.

Increased urine output, metabolic alkalosis, hypoparathyroidism, and decreased energy expenditure are not commonly observed in AKI.

In summary, Urine output, fluid accumulation, and metabolic acidosis are  commonly observed in AKI.

To learn more about metabolic acidosis here

https://brainly.com/question/17031780

#SPJ

explain how a patient could have red blood cells in the urine even if the filtration membrane were still intact

Answers

Hematuria, a disorder marked by the presence of red blood cells in the urine, can have a number of causes. Even though a compromised filtration membrane is frequently the source of hematuria, RBCs can still be found in the urine when the membrane is healthy.

The RBCs' origin in the kidneys themselves is one theory that might be put forth. RBCs can be released into the urine when a network of blood arteries in the kidneys bursts as a result of injury, infection, or other factors. Blood in the urine is caused by glomerulonephritis, an inflammation of the glomeruli (tiny filters in the kidney). Kidney stones could also be a factor in the development of hematuria. A kidney stone moving through the urinary tract might harm the lining, resulting in bleeding and RBCs in the urine. Therefore, even though filtration membrane degradation can be a prevalent cause of hematuria, there are many other potential causes for RBC presence in urine if the membrane remains undamaged.

Learn more about red blood cells here:

https://brainly.com/question/27390380

#SPJ11

in the late 20th century, a class of infectious proteins with no associated nucleic acids were identified. they are referred to as

Answers

Answer: Prions

Explanation:

Answer:

bacteriophages

Explanation:

Hope this helps! =D

by inhibiting calcium channels, what effect does alcohol have a neurotransmission

Answers

Alcohol is a central nervous system depressant that affects various neurotransmitter systems in the brain, including the GABA and glutamate systems.

When consumed, alcohol inhibits the voltage-gated calcium channels in the presynaptic neurons, which are responsible for the influx of calcium ions necessary for neurotransmitter release. This results in a decreased release of neurotransmitters, particularly glutamate, which is the main excitatory neurotransmitter in the brain.

As a result, alcohol slows down neurotransmission and leads to a decrease in cognitive and motor functions, including impaired judgment, slowed reaction time, and loss of coordination. The inhibitory effect of alcohol on calcium channels also contributes to its sedative and anxiolytic effects.

Learn more about neurotransmitter systems

https://brainly.com/question/31118590

#SPJ4

I need help with a college assignment I don’t have time to do it and it’s reading a short essay and answering some questions if you could take the time to help it would be very much appreciated

Answers

Groups of living things called species can interbreed to create fertile offspring and have similar traits.

Biology is based on the idea of species, which is used to categorize and comprehend the diversity of life on Earth. Millions of species have been identified, ranging from simple single-celled organisms to sophisticated multicellular organisms like humans.

They regulate populations, provide food and nutrients for other creatures, and contribute to ecosystem services like pollination and nutrient cycling, among other vital ecological tasks.

Over millions of years, species have changed due to factors like natural selection, genetic drift, and gene flow. Threats to numerous species today include habitat loss, climate change, pollution, and overexploitation by humans.

Learn more about Species

https://brainly.com/question/29912614

#SPJ4

Complete question

I need help with a college assignment I don’t have time to do it and it’s reading a short essay on species. Answering some questions if you could take the time to help it would be very much appreciated.

Stars evolve, or change, over time. It may take millions, or possibly billions, of years for a star to complete its life cycle. Stars spend most of their life, 90%, on the main sequence, illustrated in the Hertzsprung-Russell diagram. What color(s) are main sequence stars?
A mid-range or white mid-range or white
B all colors in the range all colors in the range
C cooler colors, yellow, orange, and red-cooler colors, yellow, orange, and red
D hot end, blue

Answers

Main sequence stars are usually at the hot end and are coloured blue. Thus, the correct answer from the given options is option D.

What are the other colours of stars?Red: cooler stars with surface temperatures between 2,500 and 3,500 KOrange: stars with surface temperatures between 3,500 and 4,000 KYellow: stars like our sun with surface temperatures around 5,500 KWhite: hotter stars with surface temperatures between 7,500 and 10,000 KBlue: very hot stars with surface temperatures above 10,000 K

The hottest and most massive stars are found at the blue end of the spectrum, while the coolest and least massive stars are found at the red end of the spectrum. Therefore, main sequence stars range in color from blue to red, but the majority of them are hot, blue stars.

Learn more about Main sequence stars here:

https://brainly.com/question/30369795

#SPJ1

which statement about evolution is accurate?(1 point) responses animals, plants, and microbes have their own separate, unrelated ancestries. animals, plants, and microbes have their own separate, unrelated ancestries. dna is the only extant evidence supporting the theory of evolution. dna is the only extant evidence supporting the theory of evolution. living things have adapted and changed over time for specific, discoverable reasons. living things have adapted and changed over time for specific, discoverable reasons. scientists no longer study evolution because it has been proven.

Answers

Living things have evolved and changed over time for specific, observable reasons, as stated by evolution. The correct answer is (C).

The process by which a population's genetic material changes over time is called evolution. Changes in genes, novel traits, and new species can all be the result of evolution, which is a reflection of how organisms adapt to their changing environments.

One of the mechanisms of evolution is natural selection. It is more likely that organisms will survive and pass on the genes that contributed to their success if they are better adapted to their environment. This interaction makes species change and veers over the long haul.

Natural selection is based on the idea that organisms with traits that can be passed down better adapt to their environment than other organisms of the same species do. When compared to other members of the species, this enables superior survival and reproduction, resulting in evolution.

Learn more about evolution here

https://brainly.com/question/31440734

#SPJ4

Q-Which statement about evolution is accurate? (1 point)

a. DNA is the only extant evidence supporting the theory of evolution.

b. Animals, plants, and microbes have their own separate, unrelated ancestries.

c. Living things have adapted and changed over time for specific, discoverable reasons.

d. Scientists no longer study evolution because it has been proven

what property of oric in e. coli allows the double-stranded dna to be more easily separated than the rest of the genome?

Answers

The property of ORI (Origin of Replication) in E. coli that allows the double-stranded DNA to be more easily separated than the rest of the genome is its AT-richness.

The DNA sequence known as ORI serves as the starting point for DNA replication. In comparison to other parts of the genome, the ORI sequence in E. coli is relatively AT-rich, meaning it has a higher percentage of adenine and thymine nucleotides.

Because of this AT-richness, DNA strands can unwind more readily, which makes them more vulnerable to enzymes that split the strands.

Because the DNA strands are simpler to separate and the replication machinery can access the template strands more quickly because to this characteristic, replication can proceed more swiftly.

Additionally, because the ORI sequence is only present in one place in the genome, its AT-richness contributes to ensuring that replication starts at the appropriate place.

To learn more about DNA visit:

https://brainly.com/question/16099437

#SPJ4

what area in the brain sets the respiratory rhythm? view available hint(s)for part a what area in the brain sets the respiratory rhythm? ventral respiratory group (vrg) dorsal respiratory group (drg) pontine respiratory group (prg) hypothalamus

Answers

Answer:

Explanation:

who ask

Other Questions
The part of the brain that integrates sensory input from the eyes, ears, muscles, and joins with motor information from the cerebral cortex is theA. cerebrum.B. cerebellum.C. brain stem.D. diencephalon. hich of the following statements best describes the journey westward in the mid-1800s? it was extremely slowgoing, but the trails were easy to cross. it took a long time and included a number of difficult obstacles. it took a short time but included a multitude of challenges. the obstacles were so difficult that few pioneers For this project, you will choose one side of the Roe v. Wade decision, whether you are for abortion or against abortion. Should women be given the right to have an abortion?This is an INDIVIDUAL assignment. These essential questions/aspects need be included in your presentation:Describe what abortion is When was it developed?What are two methods of abortion?Summary of the Roe v. Wade Supreme Court caseWhat freedom did it provide women? How was it justified?The current status of Roe v. Wade Does it seem like the United States is for abortion or against abortion?Name at least five states that abortion is legal Name at least five states that abortion is illegalDescribe the status of abortion worldwideDoes it seem like the world is for abortion or against abortion?What are five countries that abortion is legal?What are five countries that abortion is illegal?Your personal point of view on the decisionYour personal beliefs THREE reasons why you think abortion should be legal or illegalYour thoughts on a solution to the abortion issue that would satisfy both sides-and/or-Any relevant information/statistics you want to include limit of (3x+7)/(x-1)^2 as x approaches 1 Eric Inc.'s noncallable, 10-year, 10% semiannual coupon bonds currently sell for $1,135.90. They have a par value of $1,000. What is their yield to maturity? (Multiple Choice) a. 4.00% b. 3.38% c. 8.56% d. 8.00% e. 7.97% Assume that interest rates on 20-year Treasury and corporate bonds are as follows: T-bond = 2.89%, Corporate Bond = 4.73%. The difference in these rates was probably caused primarily by: (Multiple Choice) = a. Default and liquidity risk differences. b. Inflation differences. Tax effects. c. Maturity risk differences. d. Real risk-free rate differences. (mc)which statement explains why u.s. leaders are opposed to iran developing nuclear weapons? iran has supported the taliban in the past. iran is likely to use nuclear weapons against iraq. iran has threatened to use nuclear weapons against israel. iran is capable of launching nuclear missiles at the united states. according to the centers for disease control and prevention, 60% of all american adults ages 18 to 24 currently drink alcohol. is the proportion of california college students who currently drink alcohol different from the proportion nationwide? a survey of 450 california college students indicates that 66% curre quizlert what cultural and idustrial elements promote sustainable development in bhutan, maldives nepal, and sri lanka Consider the two triangles shown below. Two triangles. The first triangle has a side length of five units, a one hundred seventeen degree angle, a side of seven units. The second triangle has a side length of five units, a one hundred seventeen degree angle, a side of seven units. Two triangles. The first triangle has a side length of five units, a one hundred seventeen degree angle, a side of seven units. The second triangle has a side length of five units, a one hundred seventeen degree angle, a side of seven units. Note: The triangles are not drawn to scale. Are the two triangles congruent Que,activividad catablica realiza la semilla durante su proceso de germinacin what is the general formula for the bayesian credible interval? what distribution is the critical value taken from? an employee wears jeans to work and is reprimanded by his supervisor for dressing inappropriately. from then on, the employee wears a suit and tie to work. this is an example of: The shift from Corporate Planning to Strategy-Making implies: a. From the sources of profit outside the firm to the sources of profit within the firm b. To the Resource-based view of the firm c. Both a and b d. From the structure-based approach to the value-added perspective Why was the Exodus a significant event In israelite history Please help on this question :) A rectangular prism is shown in the image.A rectangular prism with dimensions of 5 yards by 5 yards by 3 and one half yard.What is the volume of the prism? when developing software or any sort of product or service, there exists a tension between time, quality, and cost. this is referred to as the . Help please? I just need an answer. A clear explanation earns brainliest. this is a repost since i posted the wrong photo last time. Applied Nanotech is thinking about introducing a new surface cleaning machine. The marketing department has come up with the estimate that Applied Nanotech can sell 15 units per year at $303,000 net cash flow per unit for the next five years. The engineering department has come up with the estimate that developing the machine will take a $14.9 million initial investment. The finance department has estimated that a discount rate of 16 percent should be used. a. What is the base-case NPV? (A negative answer should be indicated by a minus sign. Enter your answer in dollars, not millions of dollars, e.g., 1,234,567. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) Base-case NPV $ b. If unsuccessful, after the first year the project can be dismantled and will have an aftertax salvage value of $10.8 million. Also, after the first year, expected cash flows will be revised up to 20 units per year or to 0 units, with equal probability. What is the revised NPV? (Enter your answer in dollars, not millions of dollars, e.g., 1,234,567. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) Revised NPV this photo shows phoenix hall in heian-kyo (now kyoto). phoenix hall was built by