something in the water than is alive and affects things?

Ok, so I need something alive that provides resources for things in the water. I'm having brain problems, and can't think. please help!!!

2007-03-07 12:09:04 · 1 answers · asked by taco 2 in Environment

Hi. Plankton is a good example. Algae is another (oxygen producing). Hope this helps!

2007-03-09 14:19:09 · answer #1 · answered by Cirric 7 · 0⤊ 0⤋

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