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