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NEET UG BIOLOGY MCQ: STRUCTURAL ORGANISATION IN ANIMALS
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A: Muscle fibers are said to be contractile in nature.
R: Cells of muscle tissues can shorten forcefully and again return to the relaxed state.
R: Cells of muscle tissues can shorten forcefully and again return to the relaxed state.
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Correct option: A
Both assertion and reason are true and reason is the correct explanation of assertion
Option A (Both assertion and reason are true and reason is the correct explanation of assertion) is correct because the ability of muscle fibers to contract and relax is the fundamental basis of their contractile nature.
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ii) Smooth muscles are unbranched and cylindrical.
iii) Striated muscles can be branched or unbranched.
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