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