NEET UG BIOLOGY MCQ: EVOLUTION

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Struggle for existence and survival of the fittest theories were given by

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Correct option: B

Darwin

Option B ( Darwin) is correct because Charles Darwin is credited with the theories of struggle for existence and survival of the fittest, which are central to his theory of natural selection.

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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.