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OpenStudy (anonymous):
Most of the body features found in invertebrate evolved 2.during which of the following periods? A. Jurassic B. Cambrian C. Cretaceous D. Permian
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OpenStudy (anonymous):
This is posted in the math section, but it's not about math, so it should either be moved or deleted. The answer is the Cambrian, though - this was during the time period referred to as the "Cambrian Explosion."
OpenStudy (anonymous):
B. I think its that but you might want to check it and can you fan me and I'll give you a medal or something
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