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a) Ventricles expand soon after filled w...

a) Ventricles expand soon after filled with blood during heart beat
b) At the same time both atria come to normal stage.

A

both a and b are true

B

a is true, b is false

C

b is true, a is false

D

both a and b are false

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  12. What is cardiac cycle?

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  16. Which of the following has closed circulatory system ?

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  17. In latin 'Capillaries' means……………

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