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