Answer:
a. branched- cardiac muscle cells
b. spindle shaped- smooth muscle cells
Explanation:
Muscle cells are termed as myocytes. These are the cells that are made up of muscle tissues. These cells help in the movement and locomotion of the body.
In the human body, there are three types of muscle cells, skeletal, cardiac, and smooth. The skeletal muscle cells are cylindrical in shape. The cardiac muscle cells are rectangular in shape and have branching fibers. The smooth muscle cells are spindle-shaped.
A plants can have either brown (B) or red (b) leaves. Brown is the dominant trait. If a plane has a genotype bb; which best describes the plant.
Answer:
Explanation:
A plants can have either brown (B) or red (b) leaves with brown being a dominant trait meaning that it can be BB or Baby
While the red leaves are inherited in the recessive condition as bb.
Thus, a plant with a genotype of bb can be described as having a phenotype/ an appearance with red leaves i.e. the plants produces red leaves due to this genotype.
The sudden rapid movement of an unsaturated cohesive mass of soil, regolith, or bedrock is a The sudden rapid movement of an unsaturated cohesive mass of soil, regolith, or bedrock is a:______
a) debris avalanche.
b) mudflow.
c) landslide.
d) rockfall.
Answer:
The correct option is C: landslide
Explanation:
A landslide is a huge amount of land, rocks, and other materials that moves downhill. These land moves are caused by erosion and other strengths that may cause the land to move and fall from a steep hillside. Erosion might cause separation of different material layers, and when a land o rocky layer is separated from its immediately anterior one, gravity causes the fall of these layers.
In general, these land moves are very destructive. They can cover rivers, routs, buildings, among others, putting in danger any kind of life.
There are other moves very similar to landslides, such as mudflow, avalanche, or rockfall.
Rockfall refers to the fall or big rocks from a precipice or steep hillside.
Mudflow refers to a thick stream of mud and other materials.
Avalanche refers to the collapse of snow and other materials.
Question
Q2. A student places peaches into a pure water solution
Give two differences you would expect to find in the water
after ino hours.
Answer:
The correct answer - peaches will swell.
Explanation:
In the hypotonic solution, solution has a higher water potential than that of the cell of peach, so water will move from a region of higher water potential to a lower water potential across via osmosis.
Peaches have more solutes than pure water as it has higher sugar content than pure water. Hence, endosmosis will take place which means the water molecules will move from outside to inside of the peaches through wall of peaches takes place. Due to this, peaches will swell eventually.
Thus, the correct answer - peaches will swell.
Cottonwood, aspen, and willow trees have beige flowers, with no petals, that appear before the tree's leaves are out in the spring; and they are dioecious. What does this indicate about these trees
Answer: Their pollen is dispersed by wind.
Explanation:
Chemicals used in chemotherapy treatments to fight cancer can also harm cells in hair follicles and bone marrow. What characteristic do these cells most likely share with cancerous cells? A) They form tumors. B) They spread through the blood. C) They divide rapidly. D) They contain a mutation.
Answer:
c
Explanation:
Which label identifies the part of the ATP molecule that changes when energy is released in the cells of all living
things?
Answer:
D
Explanation:
The label d is generated as a product due to the breaking down of Phosphate compound.
Answer: C
Explanation: I just took the quiz and got 100%....Hope this helps!
Describe the difference between a chemical and an electrical gradient. What's an electrochemical gradient? Do you think an electrochemical gradient can have conflicting component gradients?
Answer:
1) The difference between chemical gradient and electrical gradient is that chemical gradient refers to the change in concentration of an ion or molecule in a solution across a biological membrane while electrical gradient refers to the existence of an electrical potential difference that leads to the movement of charged ions towards or away from the electrical potential
2) Electrochemical gradient is the charge and ion concentration difference across a biological membrane
3) No because electrochemical gradient which consists of both an electrical and chemical gradient have a complementary effect in determining the level of the electrochemical gradient.
Explanation:
The electrochemical gradient is the gradient of the electrochemical potential and is usual for a positive and negative ion that can move across the membrane.
What is the electric gradient ?The gradient is made of two parts that are chemical which is different in solutes that can move across the membrane and have an electrical component that shows difference in changes across the membrane.
The electrostatic gradient is a potential used in an iron that can be used across the membrane. Due to unequal concertation of ions, they will move across the simple diffusion.
The electrochemical has potential in electroanalytical industries as batteries and fuels. The gradient has contrasting components as change across the membrane.
Find out more information about the electrical gradient.
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A student asks, "How does exercise affect an individual’s heart rate?" Which step can the student complete to best help her answer the question through scientific inquiry? She can keep the results to herself. She can conduct background research. She can ask friends for their opinions. She can observe people who do not exercise.
I will mark you
Answer:
b
Explanation:
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Prokaryotes, like most living organisms, need movement to locate food and to survive. If a prokaryote needed to move to a new food source.
which structure would it use for locomotion?
pilli
2
capsule
-flagellum
so
chromosome
Answer: The answer is flagellum
Explanation: Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea, and flagellum is a whip-like structure that allows a cell to move. They are found in all three domains of the living world: bacteria, archaea, and eukaryota, also known as protists, plants, animals, and fungi. Also The primary role of the flagellum is locomotion, but it also often has function as a sensory organelle, being sensitive to chemicals and temperatures outside the cell. Flagella are organelles defined by function rather than structure. Flagella vary greatly.
( hope this helped )
Answer:
Flagellum
Hope this helps!
Explanation:
Which of the following characteristics cannot be influenced by the environment? A. Chance of having diabetes B. Metabolism C. Natural eye color D. Height
Answer:
The answer is option C.
Hope this helps you
Answer:
C. natural eye
Explanation:
What is the wavelength of a wave that has a velocity of 260 meters per second and a frequency of 95 hertz?
Express your answer to the nearest whole number.
Answer: its
3
Explanation:
Two examples of how plants move include changing location as part of reproductive strategies and their growth in response to different environmental factors. Explain the impact one of these examples may have on secondary succession in an area after a significant disaster.
Answer:
Secondary succession occurs when the severity of disturbance is insufficient to remove all the existing vegetation and soil from a site. Many different kinds of disturbances, such as fire, flooding, windstorms, and human activities (e.g., logging of forests) can initiate secondary succession. Pioneers of secondary successions face quite different conditions from those that accompany primary succession. Secondary successions often start with resource-rich conditions associated with high light availability and reduced competition for nutrients and moisture. Disturbances may also be short-lived; for example, gaps created in forest canopies close as the crowns of surrounding trees expand and as seedlings and saplings in the understory grow up in response to increased light. Pioneers rely on recruitment from propagules present in the soil, or that disperse into the site after disturbance occurs. Pioneers are able to outcompete established vegetation that survived the disturbance by maintaining high juvenile growth rates. Some of the fastest growing trees are pioneers in tropical rain forests. Individuals of the balsa tree Ochroma pyramidale, for example, can grow from seedlings to adults with >30 cm trunk diameter in <10 years.
The difference between pioneer and nonpioneer species is difficult to delineate (Table 1). Attempts to define distinct life-history strategies (implying coordinated evolution of life-history traits) are confounded because key traits such as propagule size and juvenile growth rate can vary over several orders of magnitude within a community and show broad overlap among species with contrasting habitat requirements. Nonetheless, interactions among traits can be used to describe some life-history tradeoffs that largely constrain the habitat requirements of pioneers. For vascular plants, paramount among these is a tradeoff between growth in the sun and survival in the shade (Figure 3). The high growth rates of pioneers are maintained by allocating a large fraction of the plant’s resources to new leaf area production, and by investing in nutrient-rich leaf tissue that can attain high-maximum photosynthetic rates. A consequence of preferential allocation to leaf production is that few resources remain that can be used to defend the plant against herbivores and pathogens, or to recover from physical damage. This results in high mortality, particularly in the shade, where resources needed for tissue replacement are most limiting.
Table 1. Characteristics of pioneer tree species in tropical forests that distinguish them from nonpioneer species
Pioneer speciesNonpioneer species1. Juveniles recruit from seed following disturbance; seedlings are unable to survive beneath a forest canopySeedlings and saplings persist in the shade of a forest canopy2. Seeds germinate in response to cues provided by changes in light, temperature, or soil nitrate concentrations indicating disturbance to canopy vegetationSeeds germinate immediately after dispersal or seasonally during periods favorable for establishment3. Seeds generally small; frequently dispersed by windSeeds may be large; frequently dispersed by vertebrates4. Seeds often persist in the soil (weeks to decades after dispersal)Seeds lack dormancy or remain in the soil for less than a year5. High height growth rate and juvenile mortality rateLower height growth, crowns often show lateral spread in the shade6. High maximal photosynthetic rate, light compensation point, and foliar nutrient concentrationsLow maximal photosynthetic rate, light compensation point, and foliar nutrient concentrations7. Short-lived leaves with high leaf area per unit leaf massLeaves of juvenile plants may persist for several years with low leaf area per unit leaf mass8. Open canopies with sparse branchingClosed canopies9. Low wood densityMedium–high wood density10. Low investment in chemical anti-herbivore defenseHigh investment in chemical and structural defenses11. Often form defensive mutualisms with antsDefensive mutualisms uncommon12. Adult lifespan typically <100 yearsAdult lifespan up to 500 years13. Wide geographic and ecological rangeOften restricted geographic range
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What process is similar in function to genetic engineering but different in the mechanism it uses? A. Breeding for specific traits B. Cellular Respiration C. Genetic Calculus D. Replication in a bioreactor
Answer:
D. Replication in a bioreactor
Explanation:
Genetic engineering is defined as the process of gene manipulation in which a gene is altered by the introduction of new genes across species boundaries to produce an improved version of organisms.
The function of genetic engineering is to produce high quality and quantity of new organism.
Replication in a bioreactor has a similar function as genetic engineering but has a different mechanism.
Replication is a process in which DNA copy itself to form a new organism.
Replication in a bioreactor function to convert copies of DNA into high-quality product under optimal condition.
Hence, the correct option is "D. Replication in a bioreactor".
Which piece of evidence would strongly support the RNA-first hypothesis? finding a protocell that could carry on metabolism as well as reproduce discovering a way to make RNA more stable than DNA finding a mechanism whereby proteins could assemble DNA out of free nucleotides being able to build microspheres that contain only protein and RNA finding a living organism that uses RNA as its genetic material
Answer:
The correct answer is - finding a living organism that uses RNA as its genetic material.
Explanation:
The RNA world theory recommends that life on Earth started with a simpler form of RNA particle that could duplicate itself. The RNA world speculation recommends that life on Earth started with a basic RNA particle that could duplicate itself without assistance from different atoms.
The RNA world theory is upheld by RNA's capacity to store, transmit, and copy hereditary data, as DNA does. RNA can go about as a ribozyme, an uncommon kind of enzyme. Since it can play out the role of both DNA and enzyme, RNA is accepted to have once been equipped for supporting free living things.
According to the hypothesis is that RNA, a nearby relative of DNA, was the main hereditary atom to emerge around 4 billion years back, however in a simpler form of life that later developed into the RNA and DNA particles that we have in life today
Thus, The correct answer is - finding a living organism that uses RNA as its genetic material
Norepinephrine and epinephrine influence all of the following except __________ functioning. A. heart B. lung C. nervous system D. sex drive
Hey Again!!
Your answer will be D. Sex drive.
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By ☆Itsbrazts☆
Answer:
Hey!
Your answer would be D. Sex drive!
Explanation:
Hope this helps!
:>
Is it organic or not organic
Consider the number of males who were diagnosed with melanoma in 2005. What quantity does this number represent? In 2005, 27.99 percent of males were diagnosed with melanoma. In 2005, 27.99 males out of 100 were diagnosed with melanoma. In 2005, 27.99 cases of melanoma were diagnosed in males. In 2005, 27.99 males out of every 100,000 were diagnosed with melanoma.
Answer:
In 2005, 27.99 males out of every 100,000 were diagnosed with melanoma.
Explanation:
Melanoma is a disease of cancer of the skin, which generates the expense of melanocytes.
In the vast majority of cases which is the first seat is skin. There are also eye melanomas, mucous membranes, and also rare the internal organs.
Now, according to the given table, it is described that the units which is used per 100,000. We will find that the number of males is 27.99 per 100,000 while the number of females is 18.30 per 100,000 .
Answer:
In 2005, 27.99 males out of every 100,000 were diagnosed with melanoma.
Explanation:
A bird is flying over a field. What will most likely happen if a toxin causes the
hydrogen ion pump to stop moving H+ ions outside the mitochondrial
membranes of the bird's cells?
A. The bird will fly a long distance because it will rely on energy from
glycolysis.
B. The bird will stop flying because it will quickly use up its remaining
energy.
C. The bird will fly only short distances because it will need to rest.
D. The bird will eat more food to build up its energy reserves in the
Krebs cycle.
SUBMIT
Answer:
B. The bird will stop flying because it will quickly use up its remaining
energy.
Explanation:
This is because the mitochondria is known as the power house of cells. Oxidative phosphorylation takes place in this organelle and it involves the conversion of ADP to ATP through the hydrogen ions(protons).
When the hydrogen ion channel is blocked, energy production in cells stop.
This is why the bird will stop flying as it would have used up its remaining energy and won’t have a new one to use to continue flying.
Answer:
B
Explanation:
A p E x
Any of a large group of diseases characterized by a condition in which the immune system produces antibodies against its own tissues, mistaking healthy cells, tissues, or organs for antigens is called a/an
Explanation:
Autoimmune Disorders
Which statement best describes how Watson and Crick's model used other scientists' work to create a model of DNA? They used Chargaff's rule to determine that it contains ribose sugar. They used Franklin's photo to determine that DNA was a double helix. They used Levene's work to determine the number of base pairs in each strand. They used Nirenberg and Matthei's studies to determine that DNA is made of nucleotide
Answer:
The correct statement is-
They used Chargaff's rule to determine that it contains ribose sugar.
They used Franklin's photo to determine that DNA was a double helix.
Explanation:
Watson and Crick used pieces of information available from different researchers such as Chargaff's rules and Franklin.
Chargaff had explained that of the four kinds of nucleotides are present in a DNA molecule in such a manner that 2 types of nucleotides were always present in the same amounts and the other 2 types of nucleotides were also always present in same amounts.
The first X-ray picture of DNA, created by Rosalind Franklin using a technique known as X-ray crystallography, which led to Watson and Crick's model of DNA. It explained the helical shape of the DNA molecule.
The correct statement is-
They used Chargaff's rule to determine that it contains ribose sugar.
They used Franklin's photo to determine that DNA was a double helix.
Answer:
They used Franklin's photo to determine that DNA was a double helix.
Explanation:
What is one way people have negatively affected land resources?
habitat restoration
urbanization
terrace farming
reforestation
Answer:
URBANIZATION
Explanation:
Urbanization is one way people have negatively affected land resources
which has lead to total exploit and in availability of those resources for us.
What are resources?Resources are physical raw materials that originated from the earth which are useful for production and many things by humans and theses resources can be land, air,water and so on.
Resources are classified as either renewable and non renewable.
Renewable are resources that replenished itselves like water, wind.
Non renewable are resources that don't replenish itselves , example include fossil fuels.
Therefore, Urbanization is one way people have negatively affected land resources.
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Which of the following is a description of a Resource that belongs to a country with a high carrying capacity
Answer:
where is the full question?
Explanation:
Answer:
B. Food is brought in from other places
Explanation:
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Angiosperms are flowering plants. The carpal is a reproductive organ within the flower. What part of the carpal becomes the fruit when fertilization occurs? The image shows a flower with 8 different lines pointing to different parts of the flower. The lines are labeled A through H. Part C Part D Part H Part I
Answer:
Ovary becomes the fruit while ovule becomes seed after fertilization.
Explanation:
There's no image so I can't show whether it's A or H.
Hope it helps.
Answer:
The answer is H
Explanation:
Arrange the following levels of organization starting from smallest and going to the largest.
A. Habitat
B. Biosphere
C. Climate zone
D. Ecosystem
Answer:
-Habitat
-Ecosystem
-Climate Zone
-Biosphere
Answer:
The person above me is wrong.
Correct Answer:
1. Biosphere
2. Biome
3.Ecosystem
4. Habitat
Explanation:
When the teacher was handing out this test, you noticed that your respiration rate and heartbeat increased, your palms got sweaty, and your hand shook a little. Your pretest behaviors were triggered by the __________ nervous system. Upon completion of the exam, your body returned to its normal state by way of the __________ nervous system.
Answer: sympathetic nervous system & parasympathetic nervous system
The current taxonomic system that taxonomists use (and that we are using during our Summer session) follows a taxonomic scheme that recognizes _____ (a number) Kingdoms in the Domain Eukarya (also spelled Eucarya).
Answer:
The correct answer is - 4 kingdoms.
Explanation:
According to the current classification or taxonomic system used by many taxonomists is the modern Linnean classification system and according to this, there are four kingdoms Protista, Fungi, Plantae, and Animalia in the domain eukarya. there are two more kingdoms in prokaryotes that are monera and archaebacteria
Thus, the correct answer is - 4 kingdoms.
Which sustainable practice is paired correctly with its impact on the environment? Using bamboo results in an increased use of forest trees. Practicing contour plowing results in a need for more land. Setting irrigation systems to run longer results in a reduction of water use. Building more wind farms results in a reduction of fossil fuel use.
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Using bamboo results in an increased use of forest trees. Bamboo is a grass, not a tree. I don't see how using more bamboo would increase your usage of trees. This option is incorrect.
Contour plowing is when your plow around the contour lines (which are basically like elevation lines) of a hill or slope. This actually reduces soil erosion and lasting effects of natural storms and disasters, so it does not result in a need for more land. This option is incorrect.
Setting irrigation systems to run longer results in a reduction of water use. Irrigation is a system of watering, so you need water for it. It would not reduce water use. This option is incorrect.
Building more wind farms results in a reduction of fossil fuel use. If you are getting your power from renewable resources like the wind or the sun, you will not need to use as many fossil fuels, and this would reduce their use. This option is correct.
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The practices that aid in economic, human and ecological dynamism and health is called sustainable practices. This procedure helps in conservatively preserving the limited sources.
The correct pairing is:
Option D. Constructing more wind farms results in a decrease in fossil fuel usage.
The practices can be explained as:
Using too many bamboos will result in the degradation of lands and increased soil erosion. It will not affect the usage of other forest trees.The method of agriculture practice in which the ploughing is done near the contour lines is called contour ploughing and does not need much land also helps in reducing soil erosion and disasters.The irrigation system conserves water and is a beneficial technique of watering the agricultural lands with an efficient amount of water.Wind energy generates more energy and power which is a renewable source compared to fossil fuels and reduces the use of petrol, diesel and coal.Therefore, option D is correct.
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A lichen is an organism that structurally appears to be a single organism. But a lichen is actually two different organisms—a fungus and green algae—living together as one organism. The fungal partner derives its nutrition from the photosynthesizing algae. How does a lichen differ in its photosynthetic activity from Elysia chlorotica, the sea slug that’s considered to be a photosynthesizing animal? A. In lichens, the fungi photosynthesize on their own, while Elysia chlorotica forms a relationship with a photosynthesizing plant. B. In lichens, the relationship with the algae lasts throughout the life cycle, but in Elysia chlorotica, the relationship occurs only during the immature juvenile stage of the slug’s life cycle. C. Lichens can photosynthesize only because of the living algal partner, while Elysia chlorotica incorporates chloroplasts from algae into its cells. D. In lichens, the association between the fungi and algae is permanent, while Elysia chlorotica associates with a photosynthesizing organism only when it requires food.
Answer:
Option C
Explanation:
Lichens can photosynthesize only because of the living algal partner, while Elysia chlorotica incorporates chloroplasts from algae into its cells.
Elysia chlorotica which is a form of sea slug feeds on a specie of the genus Vaucheria (an algae) and then retains only the chroloplasts of these algae which it uses for its own supply of energy.
The algal partner in lichens is the photosynthesizing partner. It produces food and this is its role in the relationship. The fungi are heterotrophs and cannot photosynthesize food. The fungi contribute to the relationship my absorbing mineral and water and presents it to the algae.
Answer:
Lichens can photosynthesize only because of the living algal partner, while Elysia chlorotica incorporates chloroplasts from algae into its cells.
Explanation:
what factor is found in a scientific claim
Answer:
similar results in multiple tests of the claim
Explanation:
on some of my study cards
Joyce Kilmer Forest in western North Carolina contains a stand of trees that have never been logged. Some of the trees are over 400 years old and 20 feet in circumference. Which describes this type of forest
Answer:
old growth
Explanation:
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