Refer to the given figure and select the correct statement.
A When muscles P and Q relax, arm moves down.
B When muscles P and Q contract, arm moves up.
C When muscle P contracts and muscle Q relaxes, the arm moves up.
D When muscle P relaxes and muscle Q contracts, the arm moves up.
Ans 6:
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Ans 10:
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Ans 11:
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Class : Class 5
if they contract it moves up and if they relax then arm moves down so both are correct right?