If oxygen had been present in the original primitive atmosphere,
organic molecules would be prevented from joining together.
microspheres could have formed.
aerobic cellular respiration would occur.
protocells would be able to form.
organisms could have carried out cellular respiration.

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***A*** ∻Key Concept∻ ⚹Primitive Atmosphere and Organic Molecules⚹ ∻Explanation∻ ⚹The presence of oxygen in the primitive atmosphere would have prevented the formation of organic molecules by oxidizing them, thus hindering the process of abiogenesis.⚹◊What role did the absence of oxygen play in the formation of organic molecules in the primitive atmosphere?⍭ Generate me a similar question◊

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