State whether each water pollutant listed below is primary or secondary and whether it is physical, chemical, biological, radiological, or thermal

What happens when a magniseum ion ia atracked to a chlrene ion

Which beat describes the brain stem

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.