The ventriclesatria are responsible for pumping blood while the atriaventricles receive the blood.

Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis

What happens when a scientific theory is shown to be an accurate description of a phenomenon?

Why does competiton happen? a: different organisms have different needsb: there are limited resources in an ecosystemc: there are no predators in an ecosystemd: organisms do not need the same resources (i think it's b but i'm not sure)