Question 19 (1 point)

A scientist studies a newly discovered plant.

Which question should the scientist ask to find out whether the plant reproduces sexually or asexually?

a
How many chromosomes does the plant have?
b
How many cells does the plant have?
c
How does the genetic makeup of the plant compare to its offspring?
d
How long does the plant live?

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.