Describe the significance for epidemiology of the following historical developments: a. associating the environment with disease causality b. use of vital statistics c. use of natural experiments d. identification of specific agents of disease.

What is earths lithospheric plates interact at

Name the glands associated with human digestive system

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.