NEET UG BIOLOGY MCQ: EVOLUTION

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Choose the correct statements
I. Law of embryonic development was given by Von Baer
II. Recapitulation theory was proposed by Haeckel
III. Haeckel theory states that ‘Ontogeny repeats phylogeny’
IV. Haeckel theory and biogenetic law were proposed by the same person
The correct combination is

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Correct option: D

I, II, III and IV

Option D (I, II, III and IV) is correct because all the statements are accurate: Von Baer proposed the law of embryonic development, Haeckel proposed the recapitulation theory, Haeckel's theory states 'Ontogeny repeats phylogeny', and Haeckel proposed both the theory and the biogenetic law.

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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.