1. The nerve carrying messages from the nose to the brain is the _______ nerve.   auditory   olfactory   gustatory   Hint Half-n-half Clue   2. _______ animals live on land.   Terrestrial   Aerial   Arboreal   Half-n-half Clue   3. The larvae of house-flies are known as _______.   pupas   maggots   caterpillars   Half-n-half Clue   4. Mammals have _______ glands which secrete milk.   adrenal   pituitary   mammary   Half-n-half Clue   5. Pick the "odd one out" (with reference to crustaceans and molluscs).   Crab   Mussel   Shrimp   Half-n-half Clue   6. A long-sighted person can see a distant object but has difficulty in seeing a near object.   True   False   7. The lateral lines of fish are sensitive to the vibrations of water.   True   False