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