The hindlimb is longer than forelimb in frog, why?

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

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

What molecule does hemoglobin decay into over time