1. Frogs have _______ as their hearing organs.   sensitive feelers   lateral lines   external eardrums   Hint Half-n-half Clue   2. _______ animals live on trees.   Aerial   Arboreal   Terrestrial   Half-n-half Clue   3. Which of the following two develop first in a tadpole?   Front Legs   Hind Legs   4. A bull is angered by the color of a red cloth.   True   False   5. Each of the hind feet of a frog has 4 toes.   True   False   6. _______ animals spend much of their time in air.   Arboreal   Aquatic   Aerial   Half-n-half Clue   7. The scientific term for the inner ear is _______.   stirrup   cochlea   eardrum   Half-n-half Clue