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