The oldest basalts on the ocean floor are about years old. a. 50 thousand b. 4 billion c. 200 million d. 2.5 million

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.

answer; cnidarians;

answer///africa and asia;