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Assertion: Open circulatory system is more efficient than closed circulatory system.
Reason: In closed circulatory system rather than in open circulatory system, the blood flow is slow.
  • a)
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • b)
    If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
  • c)
    If Assertion is true but Reason is false.
  • d)
    If both Assertion and Reason are false.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Assertion: Open circulatory system is more efficient than closed circu...
The closed circulatory system is more efficient than the open circulatory system because in open circulatory system, open spaces and channels the blood flows through whereas in closed circulatory system, the blood flows through proper blood vessels. Also, in closed circulatory system arterial musculature and precapillary sphincters regulate the flow of blood, due to the volume of blood flowing through a tissue or an organ may be regulated according to needs. Moreover in closed circulatory system, the blood flows far more rapidly in closed blood vesssels than in wide open channels and body cavities. Thus, blood takes much shorter time to circulate through the closed system than in open circulatory system.
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Assertion: Open circulatory system is more efficient than closed circulatory system.Reason: In closed circulatory system rather than in open circulatory system, the blood flow is slow.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'D'. Can you explain this answer?
Question Description
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