100 points please do to the best of your ability

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

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

This diagram shows how seed plants are grouped. which is the missing label? bryophytes angiosperms pteridophytes monocots