Pelicans are large birds that usually live near water. they have large, expandable pouched bills, which are useful for a. digesting their food. b. catching fish. c. swimming quickly. d. flying gracefully.

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

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

Select three sports that require participants to be highly fit before the beginning a: snowboarding b: skydiving c: rock climbing d: bungee jumping e: free diving f: hiking