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Question
Which of the following organisms were the first to be formed during the origin of life?
Which of the following organisms were the first to be formed during the origin of life?
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Solution
The correct option is D Anaerobic prokaryotic
The primitive atmosphere was reducing due to the absence of oxygen. The first life forms were anaerobic chemoheterotrophs that used the organic component as a source of energy and carbon. These were prokaryotic cells. Evolution of photoautotrophs led to the origin of aerobic organisms. Association of various organisms for nutrition and other requirements came later during evolution. Thus, the correct answer is option D.
The primitive atmosphere was reducing due to the absence of oxygen. The first life forms were anaerobic chemoheterotrophs that used the organic component as a source of energy and carbon. These were prokaryotic cells. Evolution of photoautotrophs led to the origin of aerobic organisms. Association of various organisms for nutrition and other requirements came later during evolution. Thus, the correct answer is option D.
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