Which among the following was originated first?

Prokaryotic cell

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Eukaryotic cell

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Green algae

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None of these

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Solution

The correct option is A Prokaryotic cell
The first life form, bacteria like a prokaryotic cell, originated from protocell in the Archaeozoic era (3800 million yrs ago, the era of the dawn of life). The first life forms were free anaerobic chemoheterotrophs that used the organic component as a source of energy and carbon.
Hence the correct option is A.

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