We can see here that in carrying out the experiment and identifying different types of evolutionary adaptations, we realize that the adaptations we can have are:
Structural adaptationsBehavioral adaptationsPhysiological adaptationsWhat is experiment?A scientific experiment is a test of a hypothesis, a demonstration of an established fact, or an evaluation of a specific technique, product, or method.
Natural selection-based evolution depends on both genetic variation and environmental influences. Natural selection can take advantage of genetic variety because individuals with beneficial qualities are more likely to live and reproduce, passing those traits on to subsequent generations.
We can see here that the above answer will help you to arrive at a logical conclusion after your experiement.
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Select the correct answer. Sexual milestones reached in adulthood are: OA. Emphasizing others over self B. OC. D. Entering into emotional relationships Understanding the link between sexuality and commitment All of the above
The correct answer to the question is "D. Entering into emotional relationships, emphasizing others over self, and understanding the link between sexuality and commitment." Sexual milestones in adulthood are not limited to physical acts alone, but also encompass emotional and mental aspects of one's sexual development.
Option D.
Entering into emotional relationships is a significant milestone in an adult's sexual journey as it involves developing deeper emotional connections with another person. This connection can lead to a greater understanding of one's own sexuality as well as an increased ability to communicate one's desires and boundaries.
Emphasizing others over self is another crucial milestone that adults reach in their sexual development. It involves prioritizing the needs and desires of their partner over their own, which leads to increased intimacy and trust in the relationship.
Finally, understanding the link between sexuality and commitment is also an essential milestone that adults reach in their sexual development. This milestone involves recognizing the importance of sexual intimacy in a committed relationship, which leads to increased emotional and physical satisfaction for both partners.
Overall, sexual milestones reached in adulthood are not limited to physical acts alone but also encompass emotional and mental aspects of one's sexual development.
Option D.
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1. What drove Paleolithic artists to make the sculptures? (Woman of Willendorf - Chapter 14)
2. What is the Egyptian canon of proportions?
4. What is Polykleitos's canon of proportions?
The motivation behind the creation of Paleolithic sculptures, such as the Woman of Willendorf, is not entirely clear, as there is little information about the cultural and religious beliefs of the people who created them. The Egyptian canon specifies that the body should be divided into 18 equal parts, with each part measuring the length of the head. The length of the arms should be three-quarters the length of the body, According to the Polykleitos's canon, the body should be divided into eight heads, with the head itself counting as one-eighth of the total height.
it is speculated that the sculptures were created as a form of fertility art or as a representation of the ideal female form. Some researchers also suggest that they may have been used in rituals or ceremonies. The Egyptian canon of proportions is a set of guidelines used by ancient Egyptian artists to depict the human figure in a consistent and anatomically correct manner. Polykleitos's canon of proportions is a set of mathematical ratios used by ancient Greek sculptors to create realistic and balanced representations of the human body. It includes rules for the proportions of the head, torso, arms, and legs, as well as the placement of the body's weight.
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The paleozoic era would last how many days
The Paleozoic Era was a significant geological time period in Earth's history, spanning approximately 541 to 252 million years ago.
It is important to note that the Paleozoic Era is not measured in days, but rather in millions of years, as it is a geologic time scale used to describe the Earth's development and the evolution of life.
During the Paleozoic Era, the Earth experienced significant changes, including the formation of continents, the diversification of marine and terrestrial life, and several mass extinction events. This era is divided into six distinct periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian. Throughout these periods, various organisms evolved and thrived, including early fish, invertebrates, plants, and even the first land-dwelling animals.
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The biological classification of four organisms is given
below.
Which two organisms are most closely related?
Please I’ll mark as brainlist
The two organisms that are most closely related are:
Phylum: Chordata, Class: Mammalia, Order: Carnivora, Family: Felidae, Genus: Felis, Species: f domesticus. (organism 1)Phylum: Chordata, Class: Mammalia, Order: Carnivora, Family: Felidae, Genus: Felis, Species: f leo. (organism 3)Why are these organisms most closely related?These two organisms are undoubtedly related in many ways that go beyond just physical resemblance.
A closer look at their taxonomy reveals just how closely linked they are: both fall into the Chordata phylum, Mammalia class, Carnivora order and Felidae family; showing unmistakable similarity across classifications.
It's clear that their connection runs deep since both of them even come from precisely identical genus grouping- Felis- indicating highly specific hereditary origins.
However, when it comes down to distinguishing between them scientifically you'll notice that the only real divergence between these two creatures is their species categorization. One belongs to the domesticus species while the other falls under leo deeming both to be various but related types of Felis.
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Describe the change that you made that led to the decrease in the size of the greenleaf population. Explain why the change led to a decrease in the greenleaf population size.
(no science option again) someone please answer ASAP
Populations in an ecosystem can be affected by a variety of things, including habitat change, resource availability, predation, competition, disease, or human activities.
If a change occurs that adversely affects the ability to tolerate or reproduce, the amount of green leaf population may decrease. For example, if habitat is lost due to deforestation, populations of green leafhoppers may lose their preferred food supplies or nesting sites, leading to a decline in population numbers. Similarly, if predation pressure increases, a population may experience increased mortality and poor reproductive success, resulting in a decline in numbers.
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Please help me with this
"Describe a major plant of the estuary ecosystem"
The estuary ecosystem is home to a diverse array of plants that contribute to the overall health and functioning of this unique ecosystem. One of the most important plants in the estuary is the salt marsh grass, also known as cordgrass. This plant is a tall, coarse grass that can grow up to 7 feet tall and is typically found in the intertidal zone, the area between the high and low tide lines.
Salt marsh grass plays a crucial role in the estuary ecosystem by stabilizing the soil and preventing erosion. The dense root system of this plant holds sediment in place, helping to maintain the structure of the salt marsh and prevent it from washing away during high tides and storms. In addition to stabilizing the soil, salt marsh grass also provides habitat for a variety of estuarine organisms, including invertebrates, fish, and birds.
Furthermore, salt marsh grass is a primary producer in the estuary ecosystem, converting sunlight into energy through the process of photosynthesis. This energy is then transferred up the food chain, providing food for many different organisms in the estuary. Additionally, this plant helps to filter and purify the water in the estuary by absorbing excess nutrients and pollutants.
Overall, salt marsh grass is a crucial component of the estuary ecosystem, providing habitat, stabilizing the soil, and contributing to the food web and water quality. As such, it is essential that we protect and conserve this important plant to ensure the health and functioning of estuarine ecosystems for future generations.
A symptom of HCM is that contraction of the heart muscle is more difficult. Suggest the effects HCM may have on an athlete during competitive sport
Answer:
hypertrophic cardiomyopathy (HCM) is a condition where the heart muscle becomes thickened. Although HCM is a relatively rare heart disease
Explanation:
An individual with a protein deficiency typically experiences increased susceptibility to illnesses, muscle and joint pain, and difficulty concentrating. Why does a protein deficiency cause such diverse symptoms?
Answer:
The answer is option C
Explanation:
A protein deficiency causes diverse symptoms because immune, nervous, and muscle system cells require proteins for structure and regulation.
Proteins are the building blocks of bones, muscles, cartilage, skin, and blood. They also help in transporting oxygen, helps in blood clotting during injuries, etc.
Question 28 of 30
What happens to a population when emigration decreases?
A. The population size usually decreases.
B. The immigration rate usually decreases.
C. The immigration rate usually increases.
D. The population size usually increases.
Answer:
D
Explanation:
Have a good day :)
The correct answer is A.
The population size usually decreases. If emigration decreases, fewer individuals are leaving the population, which means there are fewer opportunities for the population size to decrease.
Which gland is being described?
Answer:
1) Adrenal gland
2) Pancreas
3) Testes
Explanation:
What does each of those organelles do for the cell
Organelles are specialized structures that perform specific functions within eukaryotic cells.
Here is a brief description of the main organelles found in eukaryotic cells and their functions:
Nucleus: It contains the genetic material (DNA) of the cell and controls the cell's activities by regulating gene expression.Mitochondria: They are the site of cellular respiration, where glucose and other nutrients are broken down to produce energy in the form of ATP.Ribosomes: They are the sites of protein synthesis, where amino acids are assembled into proteins according to the sequence of genetic information provided by the mRNA.Endoplasmic Reticulum (ER): It is a network of membranes that transports molecules within the cell and also serves as the site of lipid synthesis and protein folding.Golgi apparatus: It modifies, sorts, and packages proteins and lipids for transport to their final destinations inside or outside the cell.Lysosomes: They contain enzymes that break down cellular waste and foreign substances that enter the cell.Peroxisomes: They contain enzymes that break down fatty acids and amino acids, and also neutralize toxins.Cytoskeleton: It is a network of protein fibers that maintains the shape and organization of the cell, and also enables the cell to move and divide.Cell membrane: It separates the interior of the cell from its external environment, regulates the exchange of molecules between the cell and its surroundings, and also provides cell recognition and communication.Learn more about Organelles at
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Alejandro walked into the classroom before anyone else, including the teacher, had arrived. Because it was too dark to see anything, he turned on the lights. He was then able to see his desk. Why was Alejandro able to see the desk? A The desk reflected the light. B The desk became a light source. C The desk absorbed the light when he turned it on. D The desk separated the light into all the wavelengths of visible light.
Alejandro was able to see his desk because (A) it reflected the light.
When Alejandro turned on the lights, the light traveled in a straight line until it hit the surface of the desk. The surface of the desk then absorbed some of the light and reflected the rest.
The reflected light then traveled in a straight line towards Alejandro's eyes, where it was detected by the cells in his retina, which sent a signal to his brain. This signal was interpreted by the brain as an image of the desk.
The reason why the desk reflected the light is due to the physical properties of the surface of the desk. Light is an electromagnetic wave, and when it hits a surface, it can either be absorbed, transmitted, or reflected.
In conclusion, when Alejandro turned on the lights, the desk reflected the light back towards his eyes, allowing him to see it. This is because the surface of the desk was able to reflect the light due to its physical properties. The correct answer is A.
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As long as a species traits are good
enough to survive, they will continue to
survive
True
False
The theory of biological evolution
includes which 3 ideas?
Common ancestory
Modifications through generations
The strongest, fastest, smartest die off
Change in frequency of traits
Part 1: David’s Case
David was a gardener with a reputation for being a very passive and mild mannered person. Over a very short
period of time his behaviour changed markedly. He became very bad tempered and lashed out at family mem-
bers, something they describe as being completely out of character for him. While working at a client’s house
he got into an argument with her and beat her to death. The prosecution argued that he had lost his temper
and murdered her in a fit of rage. The jury believed the prosecution and he was sentenced to life in prison.
Discussion Questions:
• Based on your review of David’s case, what assumptions did you make about his behaviour?
• Do you think David was responsible for his crime?
• How significant is it that David was reported to be acting “out of character” in the days immediately prior to
the murder? What other factors may be at play?
Summarize your answers to the questions and include them in your short essay
how is it possible that some strains can be harmless
There are a variety of factors that can influence whether a strain of bacteria is harmful or harmless. One major factor is the presence or absence of virulence factors, which are genes that allow bacteria to cause disease. Some strains of bacteria may not possess these virulence factors, or may possess them in a less potent form, which can render them harmless.
Another factor is the host immune response. In some cases, even if a strain of bacteria is capable of causing disease, a healthy immune system may be able to fight off the infection before it becomes severe. This is why some people may be asymptomatic carriers of certain bacterial strains without ever developing symptoms of illness.
In addition, environmental factors can also play a role in whether a bacterial strain is harmful or harmless. For example, some bacteria may thrive in certain environments that are not conducive to causing disease in humans. Additionally, some strains of bacteria may have evolved to live in symbiotic relationships with humans, providing benefits without causing harm.
Overall, it is important to remember that the ability of a bacterial strain to cause disease is not solely determined by its genetics, but also by a complex interplay of environmental, host, and bacterial factors.
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mention and explain four other farming activities
Answer:
Here are four other farming activities that are commonly practiced:
Irrigation: Irrigation is the process of providing water to crops when rainfall is insufficient or irregular. Irrigation systems can range from simple methods such as flooding fields, to more complex systems such as drip irrigation that deliver water directly to the roots of plants. Irrigation is particularly important in arid and semi-arid regions where water is scarce.
Fertilization: Fertilization involves adding nutrients to the soil to promote plant growth and increase crop yields. Common fertilizers include nitrogen, phosphorus, and potassium, which are essential for plant growth. Fertilizers can be applied in different forms, such as granules, liquids, or sprays, and can be organic or synthetic.
Pest control: Pest control involves the management of pests, such as insects, weeds, and rodents, that can damage crops and reduce yields. There are several methods of pest control, including chemical pesticides, biological control, and cultural practices such as crop rotation and intercropping.
Harvesting and post-harvest handling: Harvesting is the process of gathering crops from the fields, and post-harvest handling involves activities such as cleaning, sorting, and storing crops to maintain their quality and freshness. Post-harvest handling can also involve processing crops into products such as flour, oil, or juice, which can be sold or used for further processing.
Overall, these farming activities are crucial for ensuring the success of agricultural production and providing food and other products for human use. However, it is important to practice sustainable farming methods that minimize negative impacts on the environment and promote long-term productivity.
What is the attentional spotlight and how is it related to divided-attention tasks?
The attentional spotlight refers to the idea that attention is like a spotlight that can be focused on a particular object or location, allowing us to selectively process and attend to relevant information while ignoring irrelevant information. It is related to divided-attention tasks because of how attention can be selectively directed to different stimuli or sources of information
Divided-attention tasks are tasks that require individuals to attend to multiple streams of information or stimuli simultaneously. These tasks can be challenging because attention is a limited resource, and dividing attention between multiple sources of information can lead to errors and decreased performance.
The attentional spotlight is related to divided-attention tasks because it illustrates how attention can be selectively directed to different stimuli or sources of information. When individuals are engaged in divided-attention tasks, they may need to shift the attentional spotlight rapidly between different sources of information in order to effectively process and attend to all relevant information.
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Please I need help for number 14 is confused
The scientist conducted an investigation and not an experiment because other scientists are unable to replicate her results because there is only one fossil; option F.
What is the difference between an experiment and an investigation?An experiment is a systematic and controlled manipulation of one or more variables to test a hypothesis and determine cause-and-effect relationships.
In an experiment, the researcher selects and manipulates one or more variables in the treatment groups while keeping all other variables constant, and measures the effects of the manipulation on the subjects or samples.
An investigation, on the other hand, typically involves gathering and analyzing data from an existing situation or phenomenon without manipulating any variables.
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Which of the following statements is NOT true?
The blues is often in a 12-bar format
The roots of the blues were in New York City.
The blues influenced music that came later.
Lyrics are important to the blues.
‘
The statement "The roots of the blues were in New York City" is NOT true.
The roots of the blues can be traced back to African American communities in the southern United States, particularly in the Mississippi Delta region.
The blues emerged from a combination of African musical traditions and the musical traditions of European settlers, and were influenced by the experiences of African Americans living in a segregated and often oppressive society. The blues later spread to other parts of the country, including Chicago and New York City, where it continued to evolve and influence other forms of music.
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11. An entire living thing that performs basic life
processes.
For example, Humans are the living thing that performs basic life processes.
Life processes,
Respiration:· Respiration is the process in which organisms exchange gases between their body cells and the environment.
Excretion: The process by which animals rid themselves of waste products and the nitrogenous by-products of metabolism.
Reproduction: Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents.
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8. A multicellular organism.
Answer:
In contrast to unicellular organisms, multicellular organisms are made up of many cells.
Three examples of multicellular organisms are plants, animals and fungi.
Answer:
they are made up of more cells instead of unicelular which is made up of 1
mention four method of vegetative propagation
Methods of vegetative propagation include cutting, grafting, layering, division, sprouting, etc.
Vegetative propagation is a method of plant propagation that uses vegetative structures such as stems, roots and leaves to create new plants without the need for seeds. There are several methods of vegetative propagation, each suitable for different plant species and desired results. Here are some commonly used methods:
1. Cutting: This involves taking part of the stem or root of the mother plant and placing it in a suitable growing medium. Cuttings develop roots that eventually grow into new plants.
2. Layering: In this method, the plant's branches and stems are bent and partially buried in the ground. Roots develop from the buried part, and when they take root, they are separated from the mother plant and a new individual is formed.
3. Grafting: This technique involves joining the tissues of two different plants, the shoot (the plant of interest) and the rootstock (which provides the root system and support). Two plant tissues fuse and the shoot grows into a new plant with the desired plant characteristics.
4. Sprouting: Similar to grafting, sprouting involves attaching the shoots of the desired plant to a rootstock. New shoots develop from the shoots with the desired plant characteristics.
5. Tissue culture: This is a laboratory-based method of culturing plant cells or tissues in a nutrient-rich medium under controlled conditions. Cells divide and differentiate into whole plants and can be transferred to soil.
These vegetative propagation methods are widely used in horticulture and agriculture to propagate plants with desirable traits or to propagate plants that do not produce viable seeds.
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Which statement best describes the motion of objects in free fall?
A. Objects in free fall travel at a constant speed toward Earth's center.
B. Objects in free fall start by accelerating and then travel at a
constant speed toward Earth's center.
C. Objects in free fall accelerate at a constant rate toward Earth's center.
D. Objects in free fall accelerate at an increasing rate toward Earth's center.
Objects in free fall accelerate at an increasing rate toward Earth's center. The correct option is D
What is Free fall ?
When an object is falling freely, it means that it is only being affected by gravity and no other external forces.
When anything falls, the gravitational force acting on it causes it to accelerate, increasing its speed over time. Additionally, while the object falls, the rate of acceleration brought on by gravity stays constant.
Therefore, Because the force of gravity increases as the object's distance from the Earth's center decreases, things in free fall accelerate faster as they come closer to the planet's center.
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Describe three physiological systems which must work closely together
Three physiological systems that must work closely together in the human body are the respiratory system, cardiovascular system, and nervous system.
Respiratory System and Cardiovascular System: The respiratory system is responsible for the exchange of oxygen and carbon dioxide, while the cardiovascular system transports these gases, along with nutrients and waste products, throughout the body.
The respiratory system supplies oxygen to the bloodstream, and the cardiovascular system delivers oxygenated blood to various tissues and organs.
This close coordination ensures that oxygen is efficiently delivered to cells and carbon dioxide is effectively removed.
Cardiovascular System and Nervous System: The cardiovascular system, composed of the heart, blood vessels, and blood, is regulated by the autonomic nervous system.
The nervous system provides continuous control and modulation of heart rate, blood pressure, and blood vessel dilation or constriction.
This close interaction ensures the appropriate adjustment of cardiac output and blood flow distribution based on the body's needs, such as during exercise or stress.
Nervous System and Muscular System: The nervous system and muscular system work in close collaboration to enable voluntary and involuntary movements.
The nervous system initiates muscle contraction by sending signals from the brain or spinal cord to the muscles.
The muscular system, composed of skeletal, smooth, and cardiac muscles, responds to these signals by generating force and producing movement.
The nervous system also receives feedback from sensory receptors within the muscles, allowing for coordination, balance, and fine motor control.
These three physiological systems highlight the intricate interplay between different body systems, demonstrating the necessity of their close cooperation to maintain homeostasis and enable various bodily functions.
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Scientists know that a group of sharks go to a particular location in the ocean. The scientists want to find out what
the sharks are doing there, so they decide to design a device that will help them find out.
The scientists develop this list of criteria, shown in order of importance, for the design of the device.
1. It must be safe for the sharks.
2. It must show the behavior of the sharks.
3. It must be waterproof.
Two designs were tested to see how they met the criteria.
A. A camera attached to the top fin of the shark
B. A camera attached to a buoy and placed near the location in the ocean where the sharks are found
The scientists rated the performance of the designs against the criteria from 1 (low performance) to 5 (high
performance). The table shows the results.
Evaluation for design A:
1. It must be safe for the sharks: 5
2. It must show the behavior of the sharks: 4
3. It must be waterproof: 5
Evaluation for design B:
1. It must be safe for the sharks: 5
2. It must show the behavior of the sharks: 3
3. It must be waterproof: 5
What is the evaluation of the two designs?Both designs pass with flying colors in regards to shark safety and waterproof capabilities. However, in terms of capturing shark behavior, there is a noticeable difference between them.
Design A's camera location on the top fin provides better results than Design B's attachment on a buoy as it can give a more detailed view of the sharks activities.
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Cystic fibrosis Is a recessive disease that causes damage to the digestive system, lungs, and other organs of the body. Cystic fibrosis is the result of deletion mutations that are inherited from both parents. Which of the sample chromosomes shows an example of a deletion mutation?
Image displaying part of a chromosome that undergoes a mutation. The genes that make up the original chromosome are labeled RSTUV-XYZ. The genes that make up the mutated chromosome are labeled RSTUUV-XYZ.
Image displaying part of a chromosome that undergoes a mutation. The genes that make up the original chromosome are labeled RSTUV-XYZ. The genes that make up the mutated chromosome are labeled STUV-XY.
Image displaying part of a chromosome that undergoes a mutation. The genes that make up the original chromosome are labeled RSTUV-XYZ. The genes that make up the mutated chromosome are labeled RUTSV-XYZ.
Image displaying part of a chromosome that undergoes a mutation. The genes that make up the original chromosome are labeled RSTUV-XYZ. The genes that make up the mutated chromosome are labeled KLRSTUV-XYZ.
Based on the given options, the sample chromosome that shows an example of a deletion mutation is:
Image displaying part of a chromosome that undergoes a mutation. The genes that make up the original chromosome are labeled RSTUV-XYZ. The genes that make up the mutated chromosome are labeled STUV-XY.The digestive system and lungs are particularly affected by the genetic condition cystic fibrosis, which has a recessive inheritance pattern. Cystic fibrosis transmembrane conductance regulator (CFTR) gene deletion mutation that results in it being inherited from both parents. These mutations cause a defective CFTR protein to build up, causing the body's organs to produce thick and sticky mucus.
Therefore, the correct option is B.
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Four newborn babies in the delivery room of the hospital at the same time were mixed up by the nurse who
attached the wristbands. The blood types of the four babies were known to be AB, B, A, and O. Parents #1 had blood
types O and AB. Parents #2 had blood types AB and B. Parents #3 both had blood type O. Parents #4 had blood types O
and A. Which baby should go home with which set of parents? Show your work with Punnett Squares or with a written
explanation.
Baby with Type AB blood should go to ________________________________
Baby with Type B blood should go to _________________________________
Baby with Type A blood should go to _________________________________
Baby with Type O blood should go to _________________________________
Answer:
Baby with Type AB blood should go to Parents #1.
Baby with Type B blood should go to Parents #2.
Baby with Type A blood should go to Parents #4.
Baby with Type O blood should go to Parents #3.
Explanation:
(GENETICS) With quinea fowls the gene for black colour (B) is dominant over the gene for white (b) Two heterozygotic black quinea fowls are crossed. Use a schematic representation to show the possible genotypic results that would be expected in the F1-generation.
Answer:
In the cross between two heterozygotic black guinea fowls (Bb x Bb), the possible genotypic results in the F1-generation can be represented using a Punnett square:
| B | b |
-----------------------------
B | BB | Bb |
-----------------------------
b | Bb | bb |
-----------------------------
The genotypic ratio in the F1-generation would be 1 BB : 2 Bb : 1 bb, where BB represents homozygous black, Bb represents heterozygous black, and bb represents homozygous white individuals.
Explanation:
PLEASE HELP FAST
What are some ways that humans affect ecosystems? Specifically, what do humans do in your example, and what are the effects of your example?
Make sure to include specific evidence and cite any sources used.
Use 2-4 sentences
Answer:
Deforestation and poaching
Explanation:
Humans cut down trees - deforestation, increasing the levels of CO2 in the atmosphere, leading to global warming
Humans poach animals; leading to a decline of animals and an increase in 'at risk of extinction' animals