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Health, 22.08.2019 11:10 ronniethefun

By age 20, a person's bones stop growing
a. bone-forming cells are no longer present.
b. less calcium is present in the body.
c. hormones cause the growth centers at the ends of the bones to degenerate.
d. bone cells receive less oxygen and nutrients at that time.

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By age 20, a person's bones stop growing
a. bone-forming cells are no longer present.
b...

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