A) elimination of waste from tissues and cells B) elimination of carbon dioxide from tissues and cells C) transportation of food, water and oxygen to tissues and cells D) transportation of nitrogen throughout the body
A) toward B) away from C) around D) all over
A) around B) away from C) toward D) all over
A) vein B) aorta C) capillary D) artery
A) platelets B) white blood cells C) red blood cells D) plasma
A) platelets B) plasma C) white blood cells D) red blood cells
A) plasma B) platelets C) white blood cells D) red blood cells
A) ventricle B) vena cava C) aorta D) atria
A) aorta B) ventricle C) atria D) vena cava
A) liver B) heart C) lungs D) brain
A) protect against infection B) storage of fat and calcium C) temperature regulation D) transport oxygen
A) excretory system B) respiratory system C) skeletal system D) digestive system
A) valves B) ventricles C) plasma D) atria
A) 1 pump B) 3 pumps C) 4 pumps D) 2 pumps
A) hydrogen and carbon dioxide B) oxygen and hydrogen C) nitrogen and oxygen D) oxygen and carbon dioxide |