Ch 4 Systems

transport substances from body cells

remove unwanted substances and recycle fluid to blood

exchange gases between the environment and blood

prepare foods for absorption into blood and eliminate solid waste from body

remove nitrogenous wastes and excess water and salts from blood

control homeostasis by sensing change in environment, processing info and initiating body responses

control homeostasis by releasing hormones into the blood, altering body functions

movement

protect body from fluid loss, injury and infection