Answer:
B. it relaxes
Explanation:
Antagonisms. one muscle contract while the opposite one relaxes to carry out an action.
Predator is an animal hunt.The prey is the animal that is being eaten by other animals. if there a lots of predators and few preys.the predators will compete for food
19. The atomic number indicates how many neutrons there are, and the atomic mass tells us how many protons and neutrons are present within the nucleus of an atom.
Answer:
lithosphere
Explanation:
is found under the oceans and formed at spreading centres on oceanic ridges, which occur at divergent plate boundaries.
This range is about 7,000 km (4,300 mi) long, about 200 to 700 km (120 to 430 mi) wide (widest between 18° south<span> and </span>20° south latitude<span>), and of an average height of about 4,000 m (13,000 ft). The Andes extend from north to south through seven South American </span>
