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