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Question
Primitive life was ______ in nature.
Fill in the Blanks
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Solution
Primitive life was anaerobic in nature.
Explanation:
Primitive life forms originated in an environment without free oxygen; therefore, they were anaerobic, meaning they did not require oxygen for their metabolic processes. These early organisms survived in the reducing atmosphere of the primitive Earth, relying on chemical energy or other means rather than oxygen-dependent respiration.
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