1. Which of the following helps keep body cool?   Urination   Perspiration   Respiration   Mastication   Hint Half-n-half Clue   2. The response of plants to light is known as   Hydrotropism   Chemotropism   Thigmotropism   Phototropism   Half-n-half Clue   3. Which of the following is a parasite?   Pigs   Zebra   Wolves   Ringworm   Half-n-half Clue   4. Quinine is obtained from the bark of which tree?   Cinchona   Redwood   Bunyan   Eucalyptus   Half-n-half Clue   5. Which food stuff turns blue-black when brought in contact with iodine?   Proteins   Vitamins   Starch   Unsaturated Fatty Acids   Half-n-half Clue   6. How is the age of a tree determined?   By counting the annual rings in a cut trunk   By measuring its height   By measuring its girth   By counting the number of its branches   Half-n-half Clue   7. Bile is secreted by the   Stomach   Liver   Lungs   Gall Bladder   Half-n-half Clue