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4 answers

excretion

2006-10-11 14:01:23 · answer #1 · answered by Anonymous · 1 0

Excretion

2006-10-12 18:55:53 · answer #2 · answered by moosa 5 · 1 0

On the macro level, excretion...on the cellular level it's cellular respiration.

2006-10-11 21:10:48 · answer #3 · answered by Shaun 4 · 1 0

can Include feces, sweat, dermis shedding and urine.

2006-10-11 21:05:46 · answer #4 · answered by lazerustheduck 1 · 0 0

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