Living and non-living things all have interactions with each other. Ecosystems are full of these interactions and is the basis for the study of ecology. From the picture, label each object you see as abiotic or biotic

Answer:

Several factors can affect the rate of photosynthesis by denaturing enzymes in plants. These factors include:

Temperature: High temperatures can denature enzymes involved in photosynthesis, reducing their efficiency. Extremely low temperatures can also inhibit enzyme activity.

pH: Extreme pH levels, either highly acidic or highly alkaline, can disrupt enzyme structure and function, leading to denaturation and a decrease in photosynthetic rate.

Light intensity: While light is essential for photosynthesis, excessive light intensity can lead to the production of reactive oxygen species (ROS), which can damage enzymes and other cellular components.

Water availability: Water is necessary for photosynthesis, and its scarcity can lead to dehydration and denaturation of enzymes, reducing photosynthetic efficiency.

Nutrient availability: Lack of essential nutrients, such as nitrogen, phosphorus, or magnesium, can impair enzyme synthesis and function, thereby impacting photosynthesis.

Toxins and pollutants: Exposure to certain toxins and pollutants, such as heavy metals or herbicides, can interfere with enzyme activity and disrupt photosynthesis.

The chemical reaction that represents the matter and energy conversions that occur during cellular respiration is C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP.

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water. The reaction mentioned above is the overall equation for cellular respiration, which is a set of metabolic processes that occur in the mitochondria of cells.

The process of cellular respiration begins with glycolysis, which occurs in the cytoplasm of the cell. In glycolysis, glucose is broken down into two molecules of pyruvate. This process also results in the formation of two molecules of ATP. After glycolysis, the pyruvate molecules move into the mitochondria where they enter the citric acid cycle.

In the citric acid cycle, the pyruvate molecules are broken down further, releasing carbon dioxide and producing energy in the form of ATP. The electrons released during this process are carried by NADH and FADH2 molecules to the electron transport chain.

The electron transport chain is the final stage of cellular respiration and takes place in the inner mitochondrial membrane. Here, the electrons are used to generate a proton gradient, which drives the production of ATP via ATP synthase. The final products of cellular respiration are carbon dioxide, water, and ATP.

In summary, cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water. The chemical reaction that represents the matter and energy conversions that occur during cellular respiration is C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP. This reaction involves glycolysis, the citric acid cycle, and the electron transport chain, which work together to generate ATP and other products.

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Answer:

12

Explanation:

Based on the information provided, the order in which the events described took place is E, A, B, C, F, D.

In this sequence of events, Earth was formed first, this occurred as Earth cold down and therefore it became solid. Despite this, the existing atmosphere was different than the one we have now as it was rich in carbon dioxide, this led to oceans that were rich in the same component.

Due to this, the first life forms relied on carbon dioxide and release oxygen, which later led to an increase in the oxygen levels and different life forms.

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Answer:

Since the population growth is 0, the population is unchanged.

Explanation:

To calculate the population growth using the given birth rate, death rate, immigration, and emigration, we can use the formula:

(Population growth) = (Birth rate + Immigration) - (Death rate + Emigration)

Given:

Birth rate = 4

Death rate = 3

Immigration = 2

Emigration = 3

Substituting these values into the formula, we have:

(Population growth) = (4 + 2) - (3 + 3)

= 6 - 6

= 0

Therefore, the population growth is 0. Since the population growth is 0, the population remains unchanged.

The correct order of contributions to the discovery of DNA is Friedrich Miescher, Phoebus Levene, Frederick Griffith, Avery, MacLeod, and McCarty, Erwin Chargaff, Rosalind Franklin and Maurice Wilkins, and James Watson and Francis Crick.

Regarding the tomato plant phenotype, if the plant has one allele for red skin (R) and one allele for yellow skin (r), the correct description for its phenotype would be heterozygous.

The correct answer would be heterozygous.

The correct order of contributions to the discovery of DNA can be represented by the following timeline:

1. Friedrich Miescher (1869): Miescher discovered a substance in the nucleus of cells, which he called "nuclein." This substance was later identified as DNA.

2. Phoebus Levene (1919-1929): Levene made significant contributions to understanding the chemical composition of DNA. He identified the components of DNA, including nucleotides and the sugar-phosphate backbone.

3. Frederick Griffith (1928): Griffith conducted an experiment with Streptococcus pneumoniae bacteria, demonstrating the concept of transformation. He observed that harmless bacteria could acquire the ability to cause disease by incorporating genetic material from other bacteria.

4. Avery, MacLeod, and McCarty (1944): Building on Griffith's work, this group of scientists identified DNA as the substance responsible for the transformation observed in bacteria. Their experiments provided strong evidence that DNA carries genetic information.

5. Erwin Chargaff (1949): Chargaff discovered that the amount of adenine (A) in DNA is equal to the amount of thymine (T), and the amount of cytosine (C) is equal to the amount of guanine (G). This finding became known as Chargaff's rules.

6. Rosalind Franklin and Maurice Wilkins (1952): Franklin and Wilkins used X-ray crystallography to obtain images of DNA's structure, including the famous "Photo 51" taken by Franklin. These images provided critical insights into DNA's helical structure.

7. James Watson and Francis Crick (1953): Watson and Crick, building on the work of others, proposed the double helix structure of DNA. They combined data from various sources to create a model that explained how DNA stores and transmits genetic information.

Regarding the tomato plant phenotype, if the plant has one allele for red skin (R) and one allele for yellow skin (r), the correct description for its phenotype would be heterozygous. The phenotype refers to the observable physical traits of an organism, and in this case, the presence of both red and yellow skin alleles results in a mixed phenotype with red skin being dominant over yellow skin. Therefore, the plant will exhibit red skin as its phenotype.

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For each property listed, identify the type of element it describes:

Very good electrical conductivity: Metal

Amphoteric, able to form acidic OR basic compounds: Metalloid

Gaseous at room temperature: Nonmetal

Solid at room temperature: Metal, Metalloid

Brittle: Nonmetal

In the properties listed, "Very good electrical conductivity" is associated with metals. Metals are known for their high electrical conductivity due to the presence of delocalized electrons that can easily move and carry electric charges.

"Amphoteric, able to form acidic OR basic compounds" describes metalloids. Metalloids exhibit properties of both metals and nonmetals, including the ability to form compounds that can be either acidic or basic.

"Gaseous at room temperature" is a characteristic of nonmetals. Nonmetals typically exist as gases at room temperature, such as oxygen, nitrogen, and chlorine.

"Solid at room temperature" can apply to both metals and metalloids. Most metals are solid at room temperature, while some metalloids, such as silicon and germanium, are also solid under normal conditions.

"Brittle" is a property associated with nonmetals. Nonmetals tend to be brittle, meaning they are easily broken or shattered when subjected to stress.

This is because the bonding between atoms in nonmetals is usually covalent and lacks the flexibility and strength of metallic bonding.

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Increasing the number of action potentials that a muscle fiber generates over time increases the amount of force it produces because it causes more calcium to be released from the sarcoplasmic reticulum (SR) than the amount of calcium the SR can reuptake.

The correct option to this question is d.

Calcium is required for the process of muscle contraction. During a muscle contraction, an action potential is generated which spreads down the sarcolemma and into the T-tubules. The T-tubules stimulate the sarcoplasmic reticulum to release calcium ions. Calcium ions bind to troponin which causes tropomyosin to move away from the actin-binding site on the thin filament, allowing myosin to bind to actin.

ATP is used to detach myosin from actin and then re-energize the myosin head to enable it to bind to another actin molecule further along the thin filament. Increasing the number of action potentials means that more calcium is released into the sarcoplasm. This increases the amount of myosin that can bind to actin which causes the muscle fiber to contract with greater force.

In conclusion, increasing the number of action potentials that a muscle fiber generates over time increases the amount of force it produces because more calcium is available to enable myosin to bind to actin, allowing for a stronger muscle contraction.

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One piece of evidence that Darwin used to support his theory of evolution is the fossil record. The correct answer is B.

Fossils are preserved remains or traces of ancient organisms that provide a glimpse into past life forms. By studying fossils, Darwin observed a pattern of gradual changes in species over time, indicating a process of descent with modification.

Fossils provided evidence of extinct species that showed similarities to current species, suggesting a common ancestry and gradual transformation over generations.

The fossil record supports the idea of evolution by demonstrating a timeline of organisms and their transitional forms. Fossils of intermediate species, also known as transitional fossils, provide evidence of species evolving from one form to another.

For example, the discovery of fossilized fish with limb-like fins provided evidence for the evolution of land-dwelling vertebrates. These fossils support Darwin's concept of gradual change and the branching nature of evolution.

While major differences between different species and the amount of shared DNA between species are also important aspects of supporting the theory of evolution, the fossil record was a key piece of evidence that Darwin used to illustrate the historical progression of life forms and their evolutionary relationships. Therefore, the correct answer is B.

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Answer:

Explanation:

most animals living in forest are wild animals.tiger being one of them.

The option that lists the levels of the biosphere that are broader than the community is "biome, ecosystem."

In the hierarchy of the ecological organization, the community refers to the assemblage of different species that interact and coexist within a specific area. It represents the interactions among populations within a defined habitat. The community level focuses on the relationships between different species and their interactions.

Moving up the hierarchy, the next broader level is the ecosystem, which includes not only the community but also the physical environment in which the organisms live.

An ecosystem encompasses the biotic (living) and abiotic (non-living) components and their interactions within a particular area. It includes the community of organisms along with the physical factors such as climate, soil, water, and nutrient availability.

Above the ecosystem level, the next broader level is the biome, which refers to large-scale geographical areas characterized by distinct climate patterns, vegetation types, and ecological characteristics.

Biomes are broad categories that encompass multiple ecosystems sharing similar environmental conditions and supporting similar types of communities.

Therefore, the correct option is "biome, ecosystem," as it accurately represents the levels of the biosphere broader than the community.

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Different colors appear in the sky due to the scattering of sunlight.

Sunlight is composed of light waves of different wavelengths and colors. When light waves interact with gases and particles in the Earth's atmosphere, they scatter in different directions, leading to the appearance of different colors in the sky.For instance, during sunrise and sunset, the sky appears orange and red. This is because during these times, the sunlight has to pass through more of the Earth's atmosphere to reach our eyes. As a result, the shorter wavelengths like blue and green are scattered more, leaving the longer wavelengths of orange and red to reach our eyes.In another scenario, when the sky appears blue, it is because the blue wavelengths are scattered the most in the Earth's atmosphere due to the small size of air molecules. Hence, when sunlight interacts with the atmosphere, the blue color is the one that reaches our eyes.

Conduction, convection, and radiation are the three primary ways by which heat energy is distributed on Earth. These processes are responsible for regulating the Earth's temperature and creating the weather patterns that we observe. Lab activities are an excellent way to understand how these processes work. For instance, by conducting a simple convention lab experiment, students can learn about the transfer of heat energy through fluids.The lab helps to demonstrate how hot fluids move upward while cold fluids move downward, creating a circular flow.

By understanding the role of these processes, students can understand how energy is transferred from one place to another, leading to the distribution of heat on Earth. The lab also helps students to understand the real-world applications of these processes, such as how they impact the Earth's climate and weather patterns.

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The best model for Mona to make in order to show how matter moves to and from the zebra mussel is Option D.  a food chain.

A food chain represents the flow of energy and matter through different organisms in an ecosystem. It shows the transfer of nutrients and energy as one organism consumes another.

In the case of zebra mussels, they are filter-feeding organisms that extract microscopic food particles, such as phytoplankton, from the water. These phytoplankton serve as the primary producers in the ecosystem, converting sunlight and nutrients into organic matter through photosynthesis. As zebra mussels consume the phytoplankton, they act as primary consumers.

The food chain would continue with secondary consumers, such as small fish or insects, that feed on the zebra mussels. Tertiary consumers, like larger fish or birds, may prey on the secondary consumers. Each step of the food chain represents the transfer of matter and energy from one organism to another.

By creating a model of a food chain, Mona can visually represent the flow of matter, specifically nutrients, to and from the zebra mussel. It demonstrates the interconnectedness of different organisms in an ecosystem and highlights the important role of zebra mussels as filter feeders in the aquatic food web. Therefore the correct option is D

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Answer:

i think the anwser is B or C

Explanation: since a and d are both  vitamins  therefore there incorrect you dont need just both of them to main growth unless you want to earn muscles  but with a lot of vitamins you can maintain growth in many different ways i hope im correct

The level of organization identified by X is option B. tissue.

Tissue is a group of similar cells performing a common function. Tissue is the second level of organization in living things after cells. Tissue can be described as an aggregation of cells of similar structure and function which together perform specific functions. The cells in tissues are held together by a common extra-cellular matrix composed of polysaccharides, proteins, and minerals.

There are four types of tissue present in the human body and they are: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. Epithelial tissue covers the surfaces of organs, lines cavities and lumen and forms glands. Connective tissue supports and connects organs and tissues and includes cartilage, bone, adipose tissue, and blood.

Muscle tissue is responsible for movement and includes smooth, skeletal, and cardiac muscle. Nervous tissue is responsible for transmitting signals and includes neurons and glial cells. Therefore, the level of organization identified by X is tissue. Therefore the correct option is B

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The relationship between the Zika virus and humans is parasitic, as the virus infects and harms humans while utilizing them as hosts for its replication and spread. The transmission of the virus through mosquitoes ensures its survival and persistence in the population, while humans experience the detrimental effects of the infection.

The relationship between the Zika virus and humans can be described as a parasitic relationship. The Zika virus infects and harms humans, causing a range of symptoms and health complications. It takes advantage of human hosts to replicate and spread, while humans suffer the detrimental effects of the infection.

The Zika virus is primarily transmitted to humans through the bite of infected Aedes species mosquitoes, particularly Aedes aegypti and Aedes albopictus. These mosquitoes act as vectors, carrying the virus and transmitting it to humans when they bite. The virus uses the mosquitoes as a means of transportation to reach new hosts.

Once inside the human body, the Zika virus can cause various symptoms, including fever, rash, joint pain, conjunctivitis, and muscle pain. In some cases, it can lead to more severe outcomes, such as Guillain-Barré syndrome and birth defects in babies born to infected mothers, including microcephaly.

The Zika virus benefits from infecting humans as it can reproduce and spread within the human population. The virus can multiply in various tissues and fluids, including the blood, saliva, and reproductive organs. When infected mosquitoes bite humans, they acquire the virus and continue the transmission cycle by infecting other individuals.

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Answer: an example of a stimulus is  D

Explanation:

since stimulus is basically reacting to anything, it has to be D since smoke can cause blinking eyes, meaning they respond to smoke with flashing. thats why  we shouldn't smoke ( i hope im correct and i hope this helps)

The end product of digestion of carbohydrates is glucose. The term used to describe anything that we eat or drink is "nutrients." The end product of the digestion of proteins is amino acids. When a large amount of food is consumed, the result can be difficulty in emptying the bowel, also known as constipation.

Carbohydrates are macronutrients that are broken down during digestion into simpler sugars, such as glucose. Glucose is the primary source of energy for our cells and is used by the body for various functions. It can be readily absorbed into the bloodstream and transported to cells throughout the body.

The term "nutrients" refers to the components of food that provide nourishment and support various bodily functions. It encompasses carbohydrates, proteins, fats, vitamins, minerals, and water. Nutrients are essential for the growth, development, and maintenance of the body.

Proteins are macronutrients made up of amino acids. During digestion, proteins are broken down into their constituent amino acids, which are then absorbed into the bloodstream and utilized by cells for various purposes. Amino acids are essential for building and repairing tissues, producing enzymes and hormones, and supporting immune function.

Consuming a large amount of food can lead to a feeling of fullness and distension in the gastrointestinal tract. This can result in difficulties in emptying the bowel, leading to constipation.

Factors such as low fiber intake, inadequate hydration, and reduced physical activity can also contribute to constipation. It is important to maintain a balanced diet, drink plenty of water, and engage in regular physical activity to promote healthy digestion and bowel movements.

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During Alex's teenage years, his growth spurt was likely triggered by the onset of puberty. This is a natural process in which significant physical and hormonal changes occur, leading to rapid growth and development in adolescents.

Puberty is a stage of development characterized by various hormonal changes that impact physical growth and maturation. During puberty, the body undergoes significant transformations, including the growth of skeletal bones, muscle development, and changes in body composition.

These changes are primarily influenced by the release of hormones such as growth hormone and sex hormones (such as testosterone in males and estrogen in females).

In Alex's case, it is likely that his initial delay in growth during childhood was due to a slower or delayed onset of puberty compared to his peers. However, once he entered his teenage years and experienced the hormonal changes associated with puberty, his growth spurt occurred, allowing him to catch up and even surpass his friends in height.

It's important to note that the timing and extent of growth spurt can vary among individuals, influenced by genetic factors, overall health, and nutrition.

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Answer: Endoplasmic reticulum, microtubules, and the Golgi apparatus

Explanation:

Look at a diagram of these two different cells

Answer:

Vaccines are substances made from components of virus, bacteria, parasites, or other microbes that are administered as a preventative measure to help protect people from infection with a particular microorganism. Vaccines help the immune system recognize and attack a particular organism, in this case, an antivirus, by introducing harmless versions of the microorganism into the body. After a vaccine is introduced, the immune system begins to build up an immunity to the specific virus, thus reducing or eliminating the risk of becoming infected.

The most common types of antiviral vaccines are made from inactivated virus particles (like the polio vaccine) or from weakened live virus particles (like the measles vaccine). Inactivated viruses are killed using heat, chemicals, or other methods, which render the virus unable to cause infection. The virus is then used to create the vaccine. Weakened live virus vaccines use live virus particles that have been altered so they cannot multiply and cause illness.

Once the vaccine is administered, it stimulates the body’s immune system to develop antibodies and remember the virus or infection. This enables the body to respond rapidly if encountered with the real virus, preventing infection and potential illness. Vaccines can be given in the form of a shot, orally, or by a nasal spray.

For antiviral vaccines, the goal is typically to prevent the transmission and spread of the virus, reduce severe illnesses, and mortality, decrease long-term disability, and prevent viral evolution that leads to drug resistance. It is also important to remember that not all viruses can be prevented with a vaccine. Vaccines are typically used to prevent infection from viruses or other pathogens that cause severe, long-term illnesses and death.

Explanation:

If the primary motor cortex neuron increases its  action potential frequency (from something like 10 to 20 AP per second), larger alpha motor neurons would get to threshold along with smaller alpha motor neurons.

The correct option is c.

An alpha motor neuron (αMN) is a type of motoneuron that originates in the spinal cord's anterior horn and connects to extrafusal muscle fibers, causing contraction and voluntary movement. The firing rate of the alpha motor neuron determines the degree of muscle force. A single action potential from an alpha motor neuron elicits an electromyographic response (EMG) that reflects the summed action potentials of the underlying muscle fibers.

The increase in the frequency of action potentials from the primary motor cortex neuron would result in the activation of both smaller and larger alpha motor neurons. When smaller alpha motor neurons receive an action potential, they cause slow-twitch muscle fibers to contract.

On the other hand, when larger alpha motor neurons receive an action potential, they activate the fast-twitch muscle fibers. Therefore, the increase in action potential frequency from the primary motor cortex neuron will result in both small and large alpha motor neurons being activated, which will contract both slow-twitch and fast-twitch muscle fibers, respectively. Hence, larger alpha motor neurons would get to threshold along with smaller alpha motor neurons.

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Using the scientific method, the fungal attacker on bats is studied. Observations are made, questions are formulated, literature is consulted, a hypothesis is developed, a study is designed to collect and analyze data, and conclusions are drawn based on the findings.

Observations: The researcher observes that bats in a certain region are experiencing symptoms such as white growths on their noses, wing damage, and increased mortality rates. These observations suggest a potential fungal infection affecting the bats.

Choose Question: Based on the observations, a question is formulated: "What is the cause of the symptoms and increased mortality rates observed in bats in this region?"

Consult Literature: The researcher consults existing literature on bat diseases, fungal infections, and environmental factors that may impact bat populations. This helps gather background information and identify potential factors that could be contributing to the observed symptoms.

Develop a Hypothesis: Considering the observations and literature, a hypothesis is formulated: "The symptoms and increased mortality rates in bats are caused by a fungal pathogen."

Design a Study to Collect Data: The researcher designs a study to collect data, including conducting field surveys to assess the prevalence of the fungal pathogen in bat populations, collecting samples from affected bats for laboratory analysis, and documenting environmental factors that may be associated with the disease.

Analyze Data: The collected data is analyzed using appropriate statistical methods to determine the prevalence of the fungal pathogen, assess its association with the observed symptoms, and identify any significant correlations with environmental factors.

Draw Conclusions: Based on the data analysis, conclusions are drawn. If the results show a high prevalence of the fungal pathogen in affected bats, a correlation between the pathogen and the symptoms, and a significant association with specific environmental factors, it can be concluded that the fungal attacker is the likely cause of the observed symptoms and increased mortality rates in the bat population

In summary, by following the scientific method, the researcher systematically observes the symptoms in bats, formulates a question, consults literature, develops a hypothesis, designs and conducts a study to collect and analyze data, and draws conclusions based on the findings. This approach helps uncover the cause of the fungal infection in bats and provides a basis for further research and potential interventions to mitigate the impact on bat populations.

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The mutation in the [tex]OCA_2[/tex]gene that causes blue eyes in humans is an example of a non-lethal mutation. Such mutations have a neutral or insignificant effect on an organism's survival and do not significantly impact its ability to reproduce and pass on the mutation to future generations.

The mutation in the [tex]OCA_2[/tex] gene that leads to blue eyes in humans is an example of a non-lethal mutation. This specific mutation affects the production of melanin, the pigment responsible for the coloration of the iris. Individuals with this mutation have reduced melanin production, resulting in lighter eye color.

Mutations can be categorized based on their effects on an organism. Lethal mutations cause severe impairments that prevent the organism from surviving. These mutations are typically incompatible with life and often result in spontaneous abortion, stillbirth, or early death after birth. Examples of lethal mutations include those affecting vital organs or crucial developmental processes.

In contrast, non-lethal mutations have a neutral or insignificant effect on an organism's survival. These mutations may result in variations in physical traits, such as eye color, hair color, or height, but do not significantly impact the organism's ability to survive and reproduce. Non-lethal mutations often do not confer a selective advantage or disadvantage, and their occurrence is driven by genetic variation and chance.

The mutation in the [tex]OCA_2[/tex] gene that causes blue eyes is considered a non-lethal mutation because it does not adversely affect an individual's ability to survive and reproduce. While eye color may vary, it does not impact overall fitness or reproductive success. Therefore, individuals with blue eyes can thrive and pass on the mutation to future generations without any significant hindrance.

It is important to note that the categorization of mutations as lethal or non-lethal can vary depending on the specific context and species. Mutations that are non-lethal in one species may have different effects in another. Additionally, the impact of a mutation on an organism's survival and reproductive success can be influenced by environmental factors and genetic interactions.

In summary, the mutation in the [tex]OCA_2[/tex] gene that leads to blue eyes in humans is an example of a non-lethal mutation. Such mutations have a neutral or insignificant effect on an organism's survival and do not significantly impact its ability to reproduce and pass on the mutation to future generations.

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Answer:

A. Melanin.

Explanation:

Melanin is a skin pigment that protects cells from solar radiation damage.

Hope this helps!