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NEET UG BIOLOGY MCQ: EVOLUTION
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Arrange the periods of Palaeozoic era in ascending order in a geological time scale.
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Correct option: A
Cambrian –Ordovician –Silurian –Devonian –Carboniferous -Permian
Option A (Cambrian –Ordovician –Silurian –Devonian –Carboniferous -Permian) is correct because it represents the correct ascending order of periods within the Paleozoic era.
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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.
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Reason: All life forms were in water environment only.