___ 1. How does the large intestine discharge waste? A. It stores the feces when it is full B. It passes through the small intestine C. It moves the waste to the walls of the skin D. It pushes the waste materials out of the urethra to the anus
___ 2. How does the digestive system work? I. water is absorbed II. food are broken into smaller pieces III. wastes are removed from the body IV. food are liquefied and digested into forms that cells can use. V. Nutrients pass through the blood stream A. I, IV, V, II, III C. II, IV, I, V, III B. II, I, IV, V, III D. IV, I, V. II., III
___ 3. What stage is the digestive system involves the breakdown of large molecules in food into smaller substances by enzymes. A. physical phase of digestion B. chemical phase of digestion C. mechanical phase of digestion D. both mechanical and chemical
___ 4. What organ takes all the blood out of the bloodstream, clean it, and then return it to the bloodstream minus the waste products? A. heart B. intestine C. lungs D. kidney
___ 5. How does excretion occur? A. through skin C. through the large intestine B. through lungs D. All of the above
___ 6. Why is it beneficial that reflex actions do not require thinking? A. Signals are not passed to the brain, allowing the body to respond more quickly. B. Signals bypass the entire central nervous system, so reactions are very slow. C. Signals are not passed to the brain, allowing the body to respond slowly. D. Signals are passed to the brain, allowing the body to respond more quickly. ENRICH SCIEnce 6 Page 4 of 6 DIVISION OFGEN. TRIAS CITY Project ISuLAT Mo Gen. Trias Worksheets (Intensified Support to Learning Alternatives Through Modules and Worksheets)
___ 7. A bright light is pointed into your eyes. Your pupils contract to control the amount of light entering. What is the response in this reflex action? A. the muscles around the pupil C. the pupil contracting B. light receptors in the eyes D. the eyes blinking
___ 8. Why is the hairlike structure in the nasal cavity important? A. It helps the n