On a cold winter morning, a person waiting for the bus starts shivering. the muscles used in shivering produce extra heat that warm the body. shivering to warm up illustrates which characteristic of life? a. growth b. homeostasis c. adaptation to environment d. getting energy

Which phrases describe an extrusive rock? check all that apply. fine texture cooled slowly small crystal size found deep underground different, easily observed minerals

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 is the farthest destination to date for a human spaceflight mission?