NEET UG BIOLOGY MCQ: BODY FLUIDS AND CIRCULATION

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Closed circulatory system is present in

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Correct option: A

Annelids and chordates

Option A (Annelids and chordates) is correct because both annelids (e.g., earthworms) and chordates (e.g., vertebrates) have closed circulatory systems.

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In ABO blood grouping, person with blood group

{O^ - }

can accept blood from On a beautiful sunny day, a man went for jogging and climbed few stairs in the park. His heart starts beating 95 times per minute. In left ventricle, the volume of blood at the end of ventricular systole is

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140 \,\mathrm{~mL}

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