Humans and other vertebrate animals share many physically similar body parts called a) fossilized structures b) vestigial structures c) comparative structures d) homologous structures

What are two ways in which waves erode the land?

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

Construct at least two possible hypotheses for the student’s experiment.