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