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