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