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Genetics from parents and also environmental factors can cause variation in tone between students.

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Genetics and the environment you live in might alter the variation of tones.

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Genetics are a big factor and also some people tan in the sun, which also is a factor.

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I think genetics and the environment that you live in causes the variation between skin colors.

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genetics and environmental factors, like how often someone goes outside and if they use skin protection against the sun.

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Genetics,where you live,etc.

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Genetics cause a big variation of tones. Another factor is environment, people that live in warmer areas will likely have more tan skin.

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Exposure to the sun could be different for everyone + genetics

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Our ancestors and parents. Also genetics

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people have different genetics

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It is caused by what someone inherited(genes) from parents and the environment someone lives in.

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it is caused by both genes and the enviorment you are in, for example if you're in the sun a lot your skin can be tanned.

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The genetics and that more people can be more tan than others.

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The amount of melanin we have affects our skin color as well as how much sun we've been exposed to.

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The variation of skin tones between students is caused by genetics and environmental factors in where we live.

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genes passed through by parents

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The genes that we get from our parents differ.

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Genes and ethnicity

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Darker skin colors protect people from the sun so hotter parts of the world means they adapted so it is the result of natural selection.

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the melanin in our bodies/genes
or the environment

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That people have darker skin to protect from sun and sun burns and people can adapted from it.

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I think our genetics are what makes my Classmates and i different.

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I think color variation of skin tones appear bc of the alleles that show what skin tone you'll have is from your parents

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I think skin color is a result of natural selection because people from different areas of the world have different skin colors as a result of their environment which may be an advantage in that environment.

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Yes because most areas have their own skin color that has developed over time.

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I think that skin color is a result of natural selection because different areas have different types of weather, so it can change for what type of skin is best suited in that type of area.

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Yes, it's a result of natural selection because people have different skin colors (based on where their ancestors were born long ago)

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I think skin color is a result of natural selection because in some cases your skin color could help when camouflaging and also allow you to possibly survive and get more food.

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I think it is partially because your skin color can naturally change based off of where you live.

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Genes and traits we inherit from our parents.

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It is because of where our ancestors lived, it would change to better adapt

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Genes passed down from parents and ethnicity can also play a role.

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I believe it is because each area has its own majority with different colors

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Genetics is why we have different skin tones from our classmates but I think the reason why we have different colors on our skin is due to what is exposed to the sun.

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Different skin colors have different benefits depending on environment,  meaning natural selection will make different varieties of skin color dominant in different places.

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Yes because the sun can cause darker skin

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Skin color is related to natural selection because different areas have different needs to stay alive, which could relate to people around the world having different skin tones.

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Skin color is related to natural selection because the different shades are adapted to protect one from their environment.

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Maybe since my skin color is better for my environment.

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Yes, our skin color is determined by our and our ancestors environment.

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I think skin color is a result of natural selection bc the darker the skin, the more easily the skin should be able to handle the sunlight

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I think skin color is a result of natural selection since different skin tones can be an advantage. Some places with more sun has different variations than someone with less sun.

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I do think skin color or tone is a result of natural selection because for example more on the equator people need darker skin tone to not get sun burns and radiation.

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Genetics and skin cell mutations that cause a change in skin color.

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Having a darker skin tone absorbs more light for those that live in warmer areas around the world, and others have lighter skin because they live in an environment that don't produce much sunlight and this can all be seen as natural selection.

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Lighter skinned peopel are more protected from UV radiation from the sun, and also absorb less heat from the sun. So maybe they were less likely to be effected by heatstroke or skin problems.

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Genetics create different amounts of skin pigment.

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i tHink lighter skin project uv light while dark skin absorbs it. So maybe lighter skinned people have a lesser chance of developing skin cancer .

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yes because people with darker skin color last longer without getting sun damage

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genetics

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the variation of skin tones between other students could be related to ancestry, genetics, and the variation on my skin is related to sun exposure vs non exposed skin.

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I think genetics causes different skin tones and also how much sun you get which affects how much your skin needs to protect yourself from the sun.

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I think skin tones are a result of natural selection because maybe some people got sun burn because of not having enough protection.