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guajiro [1.7K]
3 years ago
12

Scientist believe that the first life form appeared over how many years ago

Biology
1 answer:
mylen [45]3 years ago
5 0
3.7 Billion years ago.
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Phenotypic variations in genetically identical organisms that grow in the same controlled environment may be due to mutation.

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Monoculture involves crop rotation as one of its elements.
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