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Some scientists believe that life on Earth began about 3.5 billion years ago. What do they base this belief on?
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What are two reasons for why a species might disappear from the fossil record?
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Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.
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Blank is a rock with a find dark texture that makes up the oceanic crust
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Some scientists believe that life on Earth began about 3.5 billion years ago. What do they base this...
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