What role do aquifers play in the water cycle?
a.
they store water in the ground.
b.
they transfer water to the air.
c.
they are the main source of water on earth.
d.
they move water through capillarity.

Describe five factors that influence the value of fuel

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.

What processes would you expect to be key in the production of yogurt ?