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