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