1. Frogs have _______ as their hearing organs.   sensitive feelers   lateral lines   external eardrums   Hint Half-n-half Clue   2. A short-sighted person can see a distant object but has difficulty in seeing a near object.   True   False   3. _______ is a unicellular animal.   Spirogyra   Chlamydomonas   Amoeba   Half-n-half Clue   4. _______ animals live in water.   Aerial   Arboreal   Aquatic   Half-n-half Clue   5. Pick the "odd one out" (with reference to crustaceans and molluscs).   Shrimp   Mussel   Crab   Half-n-half Clue   6. The body of an insect comprises three parts, namely the head, body and tail.   True   False   7. The nerve carrying messages from the tongue to the brain is the _______ nerve.   gustatory   auditory   olfactory   Half-n-half Clue