pau a. appendicit 11. It is bean-shaped paired organs which are about 4 to 5 inches long and 2 to 3 inches wide. a. kidney b. heart c. lungs d. brain 12. Which is not the function of kidney? a.Remove urea from blood through filtering units called nephron. b. Keep stable balance of salts and other substances in the blood. c. Produce hormone that aids the formation of blood cells. d. Create new cells in our body. 13. It is a hollow muscular organ located between lungs anfd it is protected bythe ribcage. a. kidney b. heart c. lungs d. brain 14. It filters the oxygen that enters our body because it contains a filtering structure to ensure the heart receives clean oxygen. a. kidney b. heart c. lungs d. brain 15. It supports each other to allow distribution of nutrients and oxygen to all parts of the bod and the removal of carbon dioxide as a waste product in the body. a. Heart and lungs b. stomach and intestines c. Kidney and heart d. brain and skeleto belns to protec
