Circulatory system is responsible for pumping oxygen rich blood to the body as it leaves the lungs. then pumps depleted blood back to the lungs for oxygen again
224 chromosomes on the wing cell
So prey is needed for a predator to eat. When there is less prey the predators community goes down as well if a group of predators die like all of them then the prey community jumps cuasing food to go down and kill everything.
Answer:
a surface of contact between two groups of unconformable strata.