Answer:
Ayo what
Explanation:
That straight up be looking like a jetpack m8. idunno bout you but good luck with those 10 year old boys going into ur s to the nap :)
The answer should be surface.
The answer is (b.) ATP and calcium
ATP (Adenosine triphosphate) and Calcium participates in the muscle movement. In a muscle contraction, Calcium ions are released to initiate upon the depolarization of the membrane which is induced by nerve impulses. While the ATP is required to the shortening of actin and myosin filament crossbridges.
