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