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