1. _______ animals spend much of their time in air.   Aquatic   Arboreal   Aerial   Hint Half-n-half Clue   2. Slow-worms and grass-snakes can be classified as reptiles which is one of the classes of vertebrates.   True   False   3. The part of the alimentary canal that absorbs water is the _______.   colon   rectum   caecum   Half-n-half Clue   4. A bull is angered by the color of a red cloth.   True   False   5. The scientific term for the inner ear is _______.   cochlea   eardrum   stirrup   Half-n-half Clue   6. Each of the hind feet of a frog has 4 toes.   True   False   7. Our vision is _______.   binocular   monocular   triocular   Half-n-half Clue