1. Which of the following animals is cold-blooded?   Crocodile   Leopard   Elephant   Seal   Whale   Hint Half-n-half Clue   2. The larvae of house-flies are known as _______.   pupas   caterpillars   maggots   Half-n-half Clue   3. _______ animals live are active during the day time and rest at night.   Diurnal   Autotrophic   Nocturnal   Half-n-half Clue   4. Pick the "odd one out" (with reference to crustaceans and molluscs).   Crayfish   Octopus   Oyster   Half-n-half Clue   5. The nerve carrying messages from the tongue to the brain is the _______ nerve.   olfactory   gustatory   auditory   Half-n-half Clue   6. _______ animals spend much of their time in air.   Aerial   Arboreal   Aquatic   Half-n-half Clue   7. The nerve carrying messages from the nose to the brain is the _______ nerve.   olfactory   auditory   gustatory   Half-n-half Clue