The largest part of the brain is made up of
lobes.
O2
O 3
O 4
O 5

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

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?