MULTIPLE CHOICE Direction: Choose the letter that corresponds to the correct answer. Write it on the blank before the number भ AA 1. The heart, stomach, kidney, lungs, and the brain are called A cells B. tissues C. organs D. organ system PERIAL 2. The structural foundation the body to stand straight and protects most of the internal organs A. heart B. bones C. nerves D. muscles 4 3. The fleshy part of the body that helps bones protects internal organs and enables the body to move A blood B. muscles C. nerves D. skin MONGOLS 282 4. What is the strongest muscle in the human body? A, cardiac muscles C. smooth muscles B. voluntary muscles D. none of the above 5. The organ that pumps blood around the body. A. lungs B. kidneys C. liver D. heart G4 6. The organ in the human body that absorbs water and electrolytes. A. stomach B. brain C. large intestine D. small intestine 7. It controls thoughts, memory, and other organs of the body A. brain B. heart C. skin D. blood 8. The organ that filters blood and produces urine is called A. liver B. bladder C. kidney D. pancreas 9. The part of the respiratory system that gets oxygen and removes dioxide from the blood. A. diaphragm B. lungs C. liver D. larynx​