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