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Biology, 22.06.2019 08:40, Josephzaz
Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of
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Biology, 22.06.2019 17:00, MoneyMike42
The part of the eye that closes and opens to let light in is .
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What would be a good affect of a mutation...
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