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