Define optimum temperature in relation to enzyme activity

Drag each label to the correct location. each label can be moved more than once match the properties with the subatomic particle

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

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.