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Comments to #8
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Ritz87 9 year s ago
Why do ppl ask stupid questions?
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gigantes 9 year s ago
#17 it's more than just that. men have nipples because they have breasts. men have breasts (mammaries) because they're mammals. the mammaries do in fact work when suckled upon sufficiently.
No. While it's true that living cells have a finite life span, an organism never simply dies because its cells got too old. However, old cells are weak. This can mean organ malfunction or shut-down. It also means old cells can’t fight off disease as easily or heal as well as they once could. This means illnesses and injuries that would barely affect a young person can be fatal for an old one.