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