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