The portion of an amino acid that makes the amino acid unique among the 20 different amino acids is

A. peptide bonding.
B. the side chain or R-group.
C. hydrocarbon.
D. amino.
E. carboxyl.


Answer: B

Biology & Microbiology

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All of the following are examples of how animals gain water EXCEPT

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Indicate whether the statement is true or false.

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Fill in the blank(s) with the appropriate word(s).

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Which of these is the correct explanation of mass change in developing eggs as illustrated in the graph?

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Biology & Microbiology