11. Which of the following organs is NOT a smooth muscle?
- A. Stomach
- B. Lungs
- C. Kidneys
- [tex]\large\tt\green{»D.\: Heart }[/tex]
12. Which of the following is included in the excretory?
- A. Mouth
- [tex]\large\tt\green{»B.\: Skin }[/tex]
- C. Brain
- D. Arms
13. What human body system that comprises of brain, spinal cord, and nerves?
- A. Circulatory
- B. Respiratory
- [tex]\large\tt\green{» C. \:Nervous }[/tex]
- D. Digestive
14. What process is the breaking down food into simpler substances to be used by the body cells?
- [tex]\large\tt\green{»A. \:Digestion }[/tex]
- B. Excretion
- C. Transpiration
- D. Signal