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