Which best explains why muscle cells are different from blood cells?
A A mutation occurs during the development of muscle cells but not in blood cells.
B Different genes are activated in muscle cells than in blood cells.
C Muscles cells experience different environmental influences than blood cells.
D Muscle cells are produced by the brain, but blood cells are produced by the heart.

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Answers

2014-02-28T19:34:47+08:00

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The answer is the letter D. :)
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