The first life on Earth was .....

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(B) According to the Oparin-Haldane hypothesis and the chemical evolution theory,the first life forms on Earth were simple,anaerobic,and chemoheterotr

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Chemoheterotrophs

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(B) According to the Oparin-Haldane hypothesis and the chemical evolution theory,the first life forms on Earth were simple,anaerobic,and chemoheterotrophic organisms. These organisms obtained their energy by consuming organic molecules present in the 'primordial soup' of the primitive ocean. They did not possess the ability to synthesize their own food (autotrophy) or perform photosynthesis,as these are more complex metabolic processes that evolved later.

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