The beginning of the Paleozoic is marked by the emergence of

A) organisms with hard parts.
B) fish and fungi.
C) extensive glaciated deposits.
D) none of these


Answer: A

Physics & Space Science

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Whether one object is warmer than another object has most to do with molecular

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Which of the following locations has the smallest (in magnitude) magnetic declination?

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What is the magnitude of the momentum of a proton moving at 0.95 c?

A.
B.
C.
D.
E.

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