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NEET UG BIOLOGY MCQ: EVOLUTION
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Understanding
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[A]: The earliest living organisms were structurally simple.
[R]: The earliest living organisms were more complex than present one.
[R]: The earliest living organisms were more complex than present one.
View answer and explanation
Correct option: C
A is true but R is false
Option C (A is true but R is false) is correct because the earliest living organisms were structurally simple, and they were simpler, not more complex, than present-day organisms.
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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.
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Reason: All life forms were in water environment only.