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    Concepts in Biology
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    Exam 19: The Origin of Life and the Evolution of Cells
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    It Is Speculated That One of the First Kinds of Organic
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It Is Speculated That One of the First Kinds of Organic

Question 24

Question 24

Multiple Choice

It is speculated that one of the first kinds of organic molecules formed on primitive Earth was


A) amino acid.
B) ammonia.
C) oxygen.
D) protein.

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