Which is the main product of photosynthesis?

To test the rate of meat digestion in animals with differing amounts of the enzyme pepsin in their digestive tracts, I propose an experiment that would involve feeding small portions of cooked meat to two separate groups of animals.

The independent variable in this experiment would be the amount of pepsin in the animals’ digestive tracts, while the dependent variable would be the rate of meat digestion. To begin, I would obtain two groups of animals, with one group having more pepsin in their digestive tract than the other.

Each animal would be given a small portion of cooked meat to eat, and then their digestive tracts would be monitored over a period of time to measure the rate at which the meat is digested. I would also need to consider any other variables that could affect the rate of digestion (such as the size of the portion of meat given to each animal).

To ensure accurate results, I would also need to use a control group of animals that would not receive any meat. With the proper materials and procedure in place, I believe this experiment would be able to provide valuable insight into the effect that pepsin has on the rate of meat digestion in animals.

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The statement “the tendon for the palmaris longus is superficial to the extensor retinaculum” is false because is actually deep to the fascia of the forearm and the extensor retinaculum.

The palmaris longus is a long, slender muscle that runs from the medial epicondyle of the humerus to the palmar aponeurosis. It is located in the anterior compartment of the forearm, and its tendon can be located by asking the patient to make a fist and then flex their wrist.

On the other hand, the extensor retinaculum is a thick band of fibrous tissue that covers the tendon of the extensor muscles as they pass over the wrist joint. It is located on the dorsal aspect of the wrist and helps to hold the tendons in place, the statement is false.

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—The question is irrelevant, the correct question is:

The tendon for the palmaris longus is superficial to the extensor retinaculum.

true or false—

The title of this selection, "Questions About Déjà Vu," supports idea B, that researchers are eager to learn more about déjà  vu.

Here, correct option is B.

Déjà vu is an experience of feeling as if one has already witnessed or experienced a current situation. It is believed to be caused by a misfiring of neurons in the brain, but the exact causes are still unknown. Researchers are eager to learn more about what causes this phenomenon and why it happens.

They are also interested in the effects it has on people who experience it, such as confusion and uncertainty, or even a sense of familiarity. By studying these effects, they hope to gain insight into the workings of the human mind and its relationship to memory.

Therefore,  correct option is B.

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Dr. Krysko's work in the Everglades ecosystem is related to each level of organization in the ecosystem.

At the species level, he studies the distribution and population dynamics of various species of reptiles and amphibians in the Everglades. He also investigates the impacts of invasive species on the native fauna of the ecosystem. At the community level, he examines the interactions between species and the effects of environmental factors on these interactions.

At the ecosystem level, Dr. Krysko's research contributes to the understanding of the Everglades' food web and how energy flows through the ecosystem. He investigates the role of top predators, such as alligators, in regulating the populations of their prey and how changes in the abundance of these predators can affect the entire ecosystem.

Finally, Dr. Krysko's work also relates to the broader landscape-level processes that impact the Everglades. He studies how habitat fragmentation, urbanization, and climate change can affect the ecosystem's biodiversity, productivity, and resilience. Overall, Dr. Krysko's research provides valuable insights into the complex relationships between species and their environment in the Everglades ecosystem, and how human activities can impact these relationships.

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Lactose is found in milk products. It is converted by the body into a usable form in a series of chemical reactions. The diagram shows the series of reactions that convert lactose into a usable form. The appropriate response will be Each enzyme is specific to its substrate.

Enzymes are  described as proteins that act as biological catalysts by accelerating chemical reactions.

There are several factors that cause an enzyme to be denatured; one of them is an increase in temperature.

So, when enzyme II is denatured, its molecular structure changes, and it In conclusion, the galactose increases when enzyme II is denatured.

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In order to create a fertilized cell, the number of chromosomes in the sperm and egg must be equal. This is because during fertilization, the sperm and egg combine to form a zygote, which is the first cell of the new organism. The zygote contains the full complement of chromosomes that will determine the characteristics of the organism. If the number of chromosomes in the sperm and egg were not equal, the zygote would not be viable and the organism would not develop properly.

A person's genotype gives them the potential to be tall, but this potential interacts with the environment to produce a(n) phenotype.

Genotype: A person's genotype refers to their specific genetic makeup, consisting of the combination of alleles (alternative forms of a gene) inherited from their parents.

Genes carry instructions that influence the development and functioning of various traits, including height. In the case of height, multiple genes are involved, and their specific variations (alleles) can influence an individual's potential height.

Phenotype: Phenotype refers to the observable characteristics or traits expressed by an individual, resulting from the interaction of their genotype with the environment.

It includes physical features, physiological attributes, and behavioral traits. Height is a phenotype that can be influenced by genetic factors but is also subject to environmental influences.

Genotype-Environment Interaction: The expression of a person's potential height, determined by their genotype, can be influenced by a variety of environmental factors.

These factors may include nutrition, access to healthcare, socioeconomic status, physical activity, exposure to diseases or infections, and even psychosocial factors.

Nutrition: Adequate nutrition, especially during critical growth periods, is crucial for achieving the full potential height. Malnutrition or deficiencies in essential nutrients can lead to stunted growth and a failure to reach the genetic potential for height.

Healthcare: Access to proper healthcare, including prenatal and postnatal care, can affect a person's growth and development. Timely identification and management of health conditions, such as hormonal imbalances or skeletal disorders, can play a role in optimizing height potential.

Socioeconomic Factors: Socioeconomic factors, such as living conditions, education, and quality of life, can influence height. Higher socioeconomic status often provides better access to resources that promote optimal growth and development.

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The dating method that is useful for dating the remains of organisms that died as long ago as 30,000 to 40,000 years ago is radiocarbon dating, also known as carbon-14 dating.

This method is based on the fact that carbon-14, an isotope of carbon, is constantly formed in the atmosphere by cosmic rays, and is incorporated into all living organisms. When an organism dies, it stops taking in carbon-14, and the carbon-14 it contains begins to decay at a known rate. By measuring the amount of carbon-14 remaining in a sample, scientists can estimate how long ago the organism died.

A refined version of radiocarbon dating, known as accelerator mass spectrometry (AMS) dating, can date organic materials that are up to 55,000 years old, making it an extremely useful tool for dating archaeological and paleontological remains.

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All other options would be false if the percentage of C is lower than 22%. Option A is false. However, if the % of C is 22%, then any option that states otherwise would be false. The correct option is A) 10% B) 25% and D) 30%

For example, if one of the options states that the % of C is 30%, then that option would be false. It is important to read all options carefully and ensure that they are all related to the given information.

It may also be helpful to consider the context of the question and why the % of C is relevant. Depending on the context, there may be additional information that can help determine which options are false. In any case, it is important to approach multiple-choice questions systematically and eliminate any options that are clearly incorrect before making a final selection.

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Complete question is :

If the % of C is 22%, then which of the following is false? (Choose all that apply)

A) 10%

B) 25%

C) 22%

D) 30%

When you add more substrate to a reaction, the reaction rate will generally increase, up to a certain point.

This is because the increased substrate concentration will lead to more frequent enzyme-substrate collisions, which in turn results in an increased rate of product formation.

However, once all the enzyme active sites are occupied by substrate molecules, the reaction rate will reach a maximum value (Vmax) and will not increase further, even with additional substrate. This phenomenon is known as enzyme saturation.

Substrate Concentration and Reaction Rate: As you mentioned, increasing the substrate concentration generally leads to an increase in the reaction rate.

This is because a higher substrate concentration provides more opportunities for the enzyme and substrate molecules to collide, facilitating the formation of the enzyme-substrate complex.

Enzyme-Substrate Collisions: Enzymes are proteins that act as catalysts, facilitating chemical reactions by lowering the activation energy required for the reaction to occur.

When substrate molecules collide with the active sites of enzymes, they form temporary enzyme-substrate complexes. The more collisions that occur, the more frequently these complexes are formed.

Increased Rate of Product Formation: The formation of enzyme-substrate complexes is a crucial step in the conversion of substrates into products. With higher substrate concentrations, there is an increased likelihood of successful collisions and formation of enzyme-substrate complexes. This, in turn, leads to a higher rate of product formation.

Enzyme Saturation and Vmax: However, there is a limit to the effect of increasing substrate concentration on the reaction rate. Once all the enzyme's active sites are occupied by substrate molecules, the enzyme becomes saturated.

At this point, the reaction rate reaches its maximum value, known as Vmax. Further increases in substrate concentration will not lead to an increase in the reaction rate.

Limitations of Enzyme Saturation: Enzyme saturation occurs because there is a finite number of enzyme molecules and a limited number of active sites available for substrate binding.

When all active sites are occupied, increasing the substrate concentration will not result in additional enzyme-substrate complexes or faster reaction rates. The enzyme is already working at its maximum capacity.

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The use of a problem-solution organization helps the author to present a clear and logical argument. It guides the reader through the thought process of the author and helps them to understand the problem and potential solutions.

One piece of text evidence that supports why the author chose a problem-solution organization is when they introduced the problem at the beginning of the piece. The author presented the problem in a clear and concise manner, stating the issue that needs to be resolved. This helps the reader understand the gravity of the problem and the urgency to find a solution.

Furthermore, the author provided possible solutions to the problem and discussed the advantages and disadvantages of each solution. They also provided evidence and examples to support their arguments. This shows that the author carefully thought through the problem and possible solutions and wanted to provide the reader with a comprehensive understanding of the situation.

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In parapatric speciation there can be contact between the two diverging populations, while in peripatric speciation there is no contact between the two diverging populations, the correct option is C.

Peripatric speciation occurs when a small group of individuals separates from the larger population and undergoes genetic drift and/or natural selection, leading to the formation of a new species.

This small group is typically isolated geographically, and therefore, there is no contact with the original population during the speciation process. The selective pressures and/or genetic drift in the overlap zone can lead to the divergence of the two populations and the formation of a new species, the correct option is C.

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The complete question is:

Which of the following describes how parapatric speciation differs from peripatric speciation? (group of answer choices)

A) parapatric speciation and peripatric speciation do not differ

B) there is no contact between the two diverging populations

C) in parapatric speciation there can be contact between the two diverging populations

D) parapatric speciation is a subgroup of peripatric speciation

E) there can be contact between the two diverging populations in parapatric speciation

Answer:

Kepler's laws describe the motion of planets around the sun. There are three laws, each with its unique features:

1. Law of Ellipses: This law states that the orbit of each planet around the sun is an ellipse with the sun at one of its foci. The shape of the ellipse is determined by its eccentricity, which is a measure of how elongated the ellipse is.

2. Law of Equal Areas: This law states that the line connecting a planet to the sun sweeps out equal areas in equal times. This means that a planet moves faster when it is closer to the sun and slower when it is farther away.

3. Law of Periods: This law states that the square of the orbital period of a planet is proportional to the cube of its average distance from the sun. This means that the farther a planet is from the sun, the longer its orbital period.

The key differences between these laws are:

1. The first law describes the shape of the planet's orbit, while the second law describes the speed of the planet as it moves along its orbit.

2. The first law applies to all planets, while the second law applies to each planet individually.

3. The third law relates the planet's distance from the sun to its period of revolution, whereas the first two laws do not involve time explicitly.

In summary, Kepler's laws describe the motion of planets around the sun, and they provide a quantitative description of this motion. The laws differ in their focus on the shape of the orbit, the speed of the planet, and the relationship between the planet's period and its distance from the sun.

Answer:

No problem! let me relive you of some of that stress    

Explanation:

Some of the signs you described could be signs of labor in a mouse, such as nesting, cleaning, and bleeding. However, they could also indicate other problems, such as respiratory infection, prolapse, or miscarriage. If your mouse has been bleeding for more than  hours without delivering any babies, or if she is showing signs of distress, such as heavy breathing, clicking noises, or lethargy, you should take her to a vet as soon as possible. She may need medical attention or intervention to save her life and the lives of her babies.

To confirm if your mouse is pregnant, you can look for some other signs, such as a swollen abdomen, prominent (well i cant say it but you may know it), increased appetite, and behavioral changes. A pregnant mouse usually carries her babies for 19 to 21 days before giving birth. You can also check for a plug at the entrance of her (can't say that), which is a sign that she has mated successfully.

If your mouse is pregnant and healthy, you should provide her with a clean and comfortable cage, plenty of nesting material, fresh water and food, and a quiet and stress-free environment . You should also separate her from any other mice to avoid fighting or (cant say that word sorry!). After she gives birth, you should not disturb her or her babies for at least a week to avoid upsetting her maternal instincts.

Based on these additional observations the “flower of stone" are inferred as it is a fern and the cone-like structures are sori, the correct option is B.

The presence of cone-like structures emitting spores of two different sizes is a characteristic feature of ferns, and these structures are called sori. Therefore, it can be inferred that the "flower of stone" is a fern.

Additionally, the fact that the plant does not produce seeds but reproduces through spores further supports the inference that it is a fern. The Y-shaped structure of the roots branching only at the growing tip is a characteristic feature of ferns as well, the correct option is B.

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The complete question is:

Big Bend National Park in Texas is mostly Chihuahuan desert, where rainfall averages about 25 centimeters per year. Yet, it is not uncommon when hiking in this extremely arid zone to encounter mosses and ferns. One such plant is called the "flower of stone." It is not a flowering plant, nor does it produce seeds. Under arid conditions, its leaflike structures curl up. However, when it rains, it unfurls its leaves, which form a bright green rosette on the desert floor. Consequently, it is sometimes called the "resurrection plant." At first glance, it could be a fern, a true moss, or a spike mosS Upon closer inspection of the leaves of "lower of stone," one can observe tiny, cone-like structures. Each cone-like structure emits spores of two different sizes. Further investigation also reveals that the roots of the "flower of stone" branch only at the growing tip of the root, forming a Y-shaped structure. Based on these additional observations, which of the following can be properly inferred about the "flower of stone"?

A) It is heterosporous and has separate male and female gametophytes.

B) It is a fern and the cone-like structures are sori.

C) It is heterosporous, it is a fern, and the cone-like structures are sori.

D) It is heterosporous, it is a lycophyte, and it has separate male and female gametophytes.

Answer: The Fallopian tube

The statement "Populations that are not exposed to predators should become more red over time, due to natural selection" is most likely true because those with more red in their pigmentation are more likely to be eaten by predators, making them less likely to live and reproduce.

Individuals with more red in their coloration are more likely to be eaten by predators means that they are less likely to survive and reproduce. Therefore, over time, natural selection would favor individuals with less red in their coloration, leading to a decrease in the amount of red in the population.

However, in the absence of predators, there would be no selective pressure against individuals with more red in their coloration, and so they would be more likely to survive and reproduce. As a result, over time, natural selection would favor individuals with more red in their coloration, leading to an increase in the amount of red in the population.

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The probable question may be:

suppose that individuals in a population of beetles differ in the amount of red in their coloration. the coloration is not genetically inherited. individuals with more red are more likely to be eaten by predators. in all other respects, the beetles are the same. which statement is most likely true?

Populations that are not exposed to predators should become more red over time, due to natural selection. Populations that are not exposed to predators should become less red over time due to natural selection. Because color does not affect survivorship, populations in the presence of predators are unlikely to evolve color changes via natural selection. Individuals should evolve to become redder when predators are absent. Because color is not inherited, populations in the presence of predators are unlikely to evolve color changes via natural selection.

The e. coli O157:H7 and K12 are both strains of E. coli, but they have different genome sizes and gene contents due to differences in their evolutionary histories.

These changes can occur randomly or be driven by environmental pressures such as competition for resources or exposure to antibiotics.

E. coli O157:H7 and K12 are both strains of E. coli, but they have different genome sizes and gene contents due to differences in their evolutionary histories. E. coli K12 is a non-pathogenic strain that has been extensively studied as a model organism for genetics and molecular biology. It has a relatively small genome (~4.6 million base pairs) and lacks many of the genes that are required for virulence or survival in harsh environments.

On the other hand, E. coli O157:H7 is a pathogenic strain that has acquired many additional genes through HGT that allow it to cause severe foodborne illnesses such as hemorrhagic colitis and hemolytic uremic syndrome. It has a larger genome (~5.5 million base pairs) and contains many virulence genes, such as those encoding Shiga toxin, which is responsible for the severe symptoms of the disease. Other acquired genes in E. coli O157:H7 confer resistance to antibiotics, ability to utilize unusual carbon sources, and ability to survive in acidic environments, which may contribute to its success as a pathogen.

In summary, differences in genome size and gene content between closely related strains of bacteria can arise through a variety of evolutionary processes. The acquisition of new genes can confer new capabilities and enable adaptation to different environments, which can be critical for survival and pathogenesis.

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La Niña is a climate pattern that occurs in the Pacific Ocean, characterized by cooler-than-average sea surface temperatures in the central and eastern parts of the ocean.

During a La Niña event, the trade winds blowing across the Pacific become stronger, causing more warm water to pile up in the western Pacific. This results in a cooler sea surface temperature in the eastern Pacific.

The increased trade winds also lead to more upwelling of colder, nutrient-rich water along the western coast of South America, which can lead to changes in ocean currents, weather patterns, and precipitation in various regions of the world. Overall, La Niña can cause drought in some areas and increased rainfall in others.

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By focusing on some apparent damage to the right temporal area of the skull, Takumi wants to understand when the damage occurred.

The temporal bone is a sturdy bone that makes up the base and side of the skull.

The nerves and ear bones that regulate hearing and balance are shielded by this bone.

The tympanic, mastoid, petrous, and squamous segments of the temporal bone are among its four distinctive segments. The pinna connects to the lateral temporal bone surface and extends into the external auditory canal.

Examination of the right temporal area of the skull can provide information about when damage may have occurred there.

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Based on scientific evidence, the claim that is least convincing is claim 1: "The amount of incoming energy from the sun changes."

While it is true that the amount of incoming solar radiation can affect temperature, it is not the primary driver of temperature changes during El Nino years. The changes in temperature are largely due to changes in oceanic and atmospheric circulation patterns, which are influenced by the warming of the tropical Pacific Ocean. Therefore, claim 2 or claim 3 may be more convincing in explaining why Christchurch's air temperature is cooler than usual during El Nio years.

El Niño is a natural climate phenomenon that occurs in the Pacific Ocean. It is characterized by unusually warm ocean temperatures in the central and eastern tropical Pacific, which can have significant impacts on weather patterns around the world. El Niño events typically occur every two to seven years and can last for several months to several years.

During an El Niño event, the trade winds that normally blow from east to west across the Pacific weaken, which allows warm water to accumulate in the central and eastern Pacific. This warm water can cause changes in atmospheric circulation patterns, which in turn can lead to changes in weather patterns around the globe.

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The carbon cycle and nitrogen cycle are both important for the availability of the four classes of organic compounds. Carbon is the backbone of all organic compounds, and it cycles through the atmosphere, land, and oceans.

Through photosynthesis, carbon dioxide from the atmosphere is taken up by plants and combined with water to form the sugar used for energy and for the building blocks of other organic compounds. Nitrogen is an essential component in the formation of proteins, nucleic acids, and other organic molecules.

It cycles through the atmosphere, land, and oceans, where it is converted by bacteria into a form usable by plants. As plants take up nitrogen and use it to create organic molecules, they in turn become food for animals, passing organic molecules up the food chain. Thus, the availability of organic molecules is dependent upon the continuous cycling of both carbon and nitrogen.

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One of the themes of the death of Patroclus, the making of the arms, and the vengeance of Achilles from the Iliad is the importance of honor and glory in ancient Greek society.

Throughout the epic poem, the characters are driven by their desire for honor and glory, which are seen as essential components of their identity and status in society. When Patroclus is killed by Hector, Achilles is consumed by grief and rage, and he is motivated to seek revenge in order to restore his own honor and that of his fallen comrade.

In his quest for vengeance, Achilles seeks to demonstrate his strength and prowess in battle, and he does so by defeating Hector and dragging his body back to the Greek camp. The making of the arms, which are ornate and beautiful, also serves to showcase Achilles' skill and status as a warrior.

Ultimately, the death of Patroclus and the vengeance of Achilles highlight the central role of honor and glory in ancient Greek culture, and the lengths to which individuals were willing to go to defend their honor and reputation. This theme is a recurring motif throughout the Iliad and reflects the values and beliefs of ancient Greek society.

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Mia would likely predict that the weather that evening would be cloudy, rainy, or stormy due to the decreasing barometric pressure.

Based on Mia's observations of the barometric pressure in Detroit, here's what she would likely predict about the weather that evening:

Mia recorded the following barometric pressure readings:
- 12:00 pm: 29.95 inHg
- 1:00 pm: 29.92 inHg
- 2:00 pm: 29.90 inHg
- 3:00 pm: 29.85 inHg
- 4:00 pm: 29.87 inHg
- 5:00 pm: 29.79 inHg
- 6:00 pm: 29.72 inHg

Step 1: Analyze the barometric pressure trend.
The barometric pressure readings show a general decrease from 29.95 inHg to 29.72 inHg.

Step 2: Interpret the trend for weather prediction.
A decreasing barometric pressure typically indicates that a low-pressure system is moving in, which is often associated with unsettled weather, such as clouds, rain, or storms.

Based on her findings, Mia would likely predict that the weather that evening would be cloudy, rainy, or stormy due to the decreasing barometric pressure.

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Answer:

C! Tropical rainforest

Answer:

C. Tropical rainforest

Explanation:

The most logical argument among the given options is: A genetically carried disease or condition, which can be treated with gene therapy, should be identified early to increase the odds of an infant's survival, whereas a mother's immunity would protect an infant from pathogens.

This is because genetic screening can help identify genetic conditions that may be treatable with gene therapy, allowing for early intervention and a higher chance of the infant's survival. In contrast, a mother's immunity can often protect an infant from pathogenic diseases, making pathogenic screening less crucial in comparison. Hence the most logical argument among the given options is: A genetically carried disease or condition, which can be treated with gene therapy, should be identified early to increase the odds of an infant's survival, whereas a mother's immunity would protect an infant from pathogens.

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The Gautrain tourism skill assessment task is designed to evaluate the proficiency and competence of tourism professionals in Gautrain in providing high-quality tourism services to local and international tourists.

The task is meant to ensure that tourism professionals have the necessary skills and knowledge to offer top-notch services to customers and enhance the tourism industry in Gautrain.

In 2021, the task 1 of the Gautrain tourism skill assessment will focus on assessing the language proficiency of tourism professionals.

This is because effective communication is crucial in the tourism industry as it helps to build rapport with customers, provide accurate information, and ensure customer satisfaction.

To successfully complete task 1, tourism professionals will be required to demonstrate their ability to communicate fluently and effectively in at least two languages, including English.

They will be evaluated based on their pronunciation, grammar, vocabulary, and ability to understand and respond to customer queries.

In conclusion, the 2021 task 1 on Gautrain tourism skill assessment task is focused on evaluating the language proficiency of tourism professionals in Gautrain. By doing so, it will help to ensure that tourists receive high-quality services and ultimately boost the tourism industry in Gautrain.

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Answer:

2. Cannot be passed on to offspring.

Explanation:

Mutations that occur in skin or lung cells have little effect on the evolution of a species because mutations in these cells cannot be passed on to offspring.