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