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