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