1. Which of the following aquatic animals is a fish?   Elver   Newt   Leech   Hint Half-n-half Clue   2. The whale belongs to which of the following classes of vertebrates?   Mammals   Birds   Amphibians   Half-n-half Clue   3. The salamander belongs to which of the following classes of vertebrates?   Reptiles   Fish   Amphibians   Half-n-half Clue   4. Which of the following animals travels from the sea up a river in order to spawn?   Oyster   Salmon   Newt   Lemming   Salamander   Half-n-half Clue   5. The lungs _______ when the diaphragm rises.   contract   expand   inflate   Half-n-half Clue   6. Which of the following animals can be classified as a vertebrate which is omnivorous and is not stationary?   Sea Anemone   Man   Oyster   Lobster   Jellyfish   Half-n-half Clue   7. Which of the following animals is a marsupial?   Seal   Kangaroo   Whale   Giraffe   Tapir   Half-n-half Clue