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Biology, 27.04.2021 20:40 starfox5454
About 530 million years ago, an evolutionary period known as the "Cambrian explosion" took place. Large numbers of new animal species appear in the fossil record that corresponds with this time.
Based on patterns of extinctions documented in the fossil record, about how many of these Cambrian species are probably still surviving today?
A- none of them
B- All of them
C-most of them
D-A very small number of them
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About 530 million years ago, an evolutionary period known as the "Cambrian explosion" took place. La...
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