1. The part of the alimentary canal that absorbs water is the _______.   rectum   caecum   colon   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. Mammals have _______ glands which secrete milk.   adrenal   pituitary   mammary   Half-n-half Clue   4. Slow-worms and grass-snakes can be classified as reptiles which is one of the classes of vertebrates.   False   True   5. Pick the "odd one out" (with reference to crustaceans and molluscs).   Crab   Mussel   Shrimp   Half-n-half Clue   6. The body of an insect comprises three parts, namely the head, body and tail.   True   False   7. Frogs have _______ as their hearing organs.   external eardrums   lateral lines   sensitive feelers   Half-n-half Clue