If two objects are close to each other and the mass of one object increases, what happens to the force of gravity acting between the objects?

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons