Biology, asked by rahulmittal3154, 11 months ago

Second heart sound is produced due to
(a) Opening of semilunar valves
(b) Closing of semilunar valves
(c) Opening of bicuspid & tricuspid valves
(d) Closing of bicuspid & tricuspid valves

Answers

Answered by arusha8683

1

(b) Closing of semilunar valves

Answered by raziya99

1

B.closing of semilunar valves.

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