Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in heritable traits of a population over time. The term "natural selection" was popularised by Charles Darwin who compared it with artificial selection, now more commonly referred to as selective breeding.
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Ohio
Explanation:
To run the family business for a time.
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Acid Rain goes in lakes and other water sources where animals drink water. When drinking for acid rain water animals get sick and plants dependent on water sources die off.
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Icthyology would be characterized by the fact that it has to do with fish.
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Yes, of course there is. If you are eating meat, its right in the cells. Just because the cells are dead, doesnt mean the DNA disappeared. It would take a while for it to disappear. If you are eating vegetables its there. Its in bread too because this is made from wheat, a plant. However, if you are eating rocks you would not find DNA.