Do plants such as ferns need to break down glucose to obtain usable energy? a. no, they absorb the sun's energy directly.
b. no, they absorb energy from the soil.
c. yes, they make glucose and break it down to produce atp.
d. no, they make glucose, but they don't break it down.

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.