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c-man c-man
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9 years ago
The famous Cambrian-era fossil deposit known as the Burgess Shale is now estimated to contain fossils of how many animal phyla?
A) None―animals had not appeared at the time.
B) just two or three anatomically simple animal phyla
C) about the same number as those alive today
D) about half as many as are alive today
E) two or three times as many as alive today
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Evolutionary Analysis

Evolutionary Analysis


Edition: 5th
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gkop98gkop98
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9 years ago
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c-man Author
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#2
9 years ago
Makes sense now, thank you
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#3
9 years ago
If you need anything else, give me a shout
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