Photosynthesis and cellular respiration are said to form a continuous cycle because:
A) the products of one process are the starting materials for the other.
B) oxygen, the byproduct of cellular respiration, is the starting material for photosynthesis.
C) carbon dioxide, the byproduct of photosynthesis, is the starting material for cellular respiration.
D) both photosynthesis and cellular respiration use the same starting materials.
2006-09-06
03:58:29
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6 answers
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asked by
PeachyFixation
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