Biology, 07.05.2021 04:50, dmccray3357

Photosynthesis and cellular respiration are both complementary and relatively balanced, but early history of life on Earth showed increasing oxygen concentrations. This indicates that Group of answer choices both photosynthesis and respiration were occurring at approximately the same levels. neither photosynthesis nor respiration were occurring. the amount of cellular respiration occurring exceeded the amount of photosynthesis. the amount of photosynthesis occurring exceeded the amount of cellular respiration.

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Photosynthesis and cellular respiration are both complementary and relatively balanced, but early hi...