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CHapter 1 questions?

#48: May - June 2008 (Non-Fiction)
Chrissyx3

CHapter 1 questions?

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i've been having trouble with my summer assignment questions and i cant understand to answer them.
1. explain why the author and colleagues chose to focus on 375 million year old rocks in their search for fossils.

must appreciated :)
Zuly
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Re: CHapter 1 questions?

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Fossils had been found on rocks from 365 million years ago of Reptiles and Amphibians. Older rocks, 385 mya, show fossils of fish, no neck, with a conical head, etc. The researchers hypothesized that a transitional form would probably be found roughly in between those time periods.
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