Which of the following materials cycle through an ecosystem: 1) carbon, 2) nitrogen, 3) oxygen, 4) water, and 5) energy?

0 votes
    only 4 and 5
    1 through 5
    only 1 and 2
    1 through 3
    1 through 4

asked May 30, 2013 in Biology by anonymous
    

1 Answer

0 votes
1 through 4
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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