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