Aquatic animals have different levels of tolerance to ph scale changes in water. for example a wood frog will die if the ph of water falls below 4while a clam will die if the ph of water falls below 6 what can you conclude about the acidity of water in a river if both wood frogs and clams survive?

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.