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Photosynthetic autotrophs are organisms that use light energy and carbon dioxide to make sugar and oxygen. Aerobic heterotrophs, on the other hand, are organisms that use oxygen and organic carbon for energy, and release carbon dioxide as a waste product. Earth's early atmosphere contained very little free oxygen. Based on the information above, which of the following is most likely true?

Respuesta :

no I do not think its true but I'm not entirely sure

gracesmom1703owjm8k

A.  Aerobic heterotrophs evolved before photosynthetic autotrophs.

  B.  Photosynthetic autotrophs require high levels of oxygen for survival.

  C.  Photosynthetic autotrophs evolved before aerobic heterotophs.  (CORRECT ANSWER)

 D.  Aerobic heterotrophs do not require access to oxygen for survival.

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