Which group of living things can move energy from consumers at the top of an energy pyramid back to producers at the bottom? *

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.

Differentiate renewable and nonrenewable resources

The most effective way to provide children with safety messages is to