I believe the answer is D. Earthworms.
ATP<span> is responsible for cocking (pulling back) the myosin head, ready for another cycle. When it binds to the myosin head, it causes the cross bridge between actin and myosin to detach. </span>ATP<span> then provides the energy to pull the myosin back.</span>
Animals use territorial behavior to adapt to new surroundings. it helps them stay stronger when they have to compete for food and it also helps with overcrowding and overpopulation
