1. _______ animals spend much of their time in air.   Aerial   Aquatic   Arboreal   Hint Half-n-half Clue   2. Pick the "odd one out" (with reference to crustaceans and molluscs).   Shrimp   Crab   Mussel   Half-n-half Clue   3. A bull is angered by the color of a red cloth.   True   False   4. _______ animals live on land.   Arboreal   Terrestrial   Aerial   Half-n-half Clue   5. A short-sighted person can see a distant object but has difficulty in seeing a near object.   True   False   6. Which of the following animals is cold-blooded?   Whale   Seal   Leopard   Elephant   Crocodile   Half-n-half Clue   7. _______ is a unicellular animal.   Spirogyra   Amoeba   Chlamydomonas   Half-n-half Clue