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