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elena-14-01-66 [18.8K]
4 years ago
5

When did large numbers of fossils first appear in the geologic record?

Biology
1 answer:
Mariana [72]4 years ago
5 0
Approximately 66.5 million years ago
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4 years ago
Which of these biomolecules increase membrane fluidity and help prevent the cell membrane
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Cholesterol

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