Which process must occur for a muscle to be able to relax?
( A.
A nerve must initiate an action potential in the muscle fiber.
• B.
The concentration of calcium in the myofibril must decrease.
• c.
Myosin and actin must attach to each other.
O D.
The amount of ATP in the neuromuscular junction must increase.


Answer :

Answer:

The answer is A).

A nerve must initiate an action potential in the muscle fiber.

Explanation: