1. How many teeth does an average human adult have?   31   33   32   36   Hint Half-n-half Clue   2. Bile is secreted by the   Liver   Gall Bladder   Lungs   Stomach   Half-n-half Clue   3. Which of the following animals is not extinct?   Brontosorus   Mammoth   Cheetah   Dodo   Half-n-half Clue   4. Which of the following are known as "pisces"?   Fish   Birds   Mammals   Reptiles   Half-n-half Clue   5. What is the pulse rate of an average healthy human being?   16 beats per minute   65 beats per minute   100 beats per minute   72 beats per minute   Half-n-half Clue   6. Fish breathe through   Lungs   Gills   Fins   Skin   Half-n-half Clue   7. The response of plants to light is known as   Chemotropism   Hydrotropism   Phototropism   Thigmotropism   Half-n-half Clue