Can you guys answer this for me?

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

Describe five factors that influence the value of fuel

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?