NEET Biology Organisms and population Question Bank Ageing and Death

  • question_answer
    The efficiency of heart decreases with age so heart pumps about ...... blood per minute in comparison to young age

    A) 20%

    B) 40%

    C) 65%

    D) 85%

    Correct Answer: C

    Solution :

    The efficiency of heart decreases with age so heart pumps about 65% blood per minute in comparison to young age (30 years). So the blood supply to various organs is also decreased e.g. 80%, to brain and 40-42% to the kidney.


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