How does deforestation relate to biodiversity?

Which of the following systems in absorbing oxygen and releases carbon dioxide

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

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous