Explanation:
The muscles opposing the movement become the antagonists.
In a movement, like the back extension, the muscles that extend the back are the agonist.
The muscles that produce the opposite movement, which is back flexion, are the abdominals.
Push up test would me a muscle activity
Answer:
People differ in the amounts of sleep and rest needed.
Explanation:
You did not elaborate. This was all I could think of.
B is going to be your correct answer for this question. Have a good day