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Question
The first organisms on primitive earth were ___________.
The first organisms on primitive earth were ___________.
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Solution
The correct option is B Heterotrophic and anaerobic
The first organisms on primitive earth were heterotrophic and anaerobic.
In primitive earth, the oxygen was limited. The modern organism has a similar structure to that of the ancient organisms. Photosynthesis is first found in those organisms which are rich in oxygen. They are heterotrophic. Example Cyanobacteria.
Hence, option B is correct.
The first organisms on primitive earth were heterotrophic and anaerobic.
In primitive earth, the oxygen was limited. The modern organism has a similar structure to that of the ancient organisms. Photosynthesis is first found in those organisms which are rich in oxygen. They are heterotrophic. Example Cyanobacteria.
Hence, option B is correct.
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