Define the word purpose

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Select the word from the list that best fits the definition a system made of 25 satellites