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