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NEET UG BIOLOGY MCQ: EVOLUTION
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The atmosphere of early earth probably contained no until the emergence of organisms that:
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Correct option: D
Used water as a hydrogen source for photosynthesis
Option D (Used water as a hydrogen source for photosynthesis) is correct because oxygen is released as a byproduct when water is split during photosynthesis.
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The main point of Darwin’s theory is
Which one of the following is not a vestigial structure in Homo sapiens?
The brain capacities of Homo habilis were
Assertion (A): In mammals the forelimbs perform different functions.
Reason (R): The forelimbs in different mammals consist of different sets of bones. Identify the phenomenon in which the members of a species do not interbreed with the members of other species or same species Assertion: Organic compounds first evolved in earth required for origin of life were protein and nucleic acid.
Reason: All life forms were in water environment only.
Reason (R): The forelimbs in different mammals consist of different sets of bones. Identify the phenomenon in which the members of a species do not interbreed with the members of other species or same species Assertion: Organic compounds first evolved in earth required for origin of life were protein and nucleic acid.
Reason: All life forms were in water environment only.