1. A _______ is an amphibian.   salmon   dog   raven   lizard   newt   Hint Half-n-half Clue   2. A _______ is cold-blooded.   polar bear   snake   3. _______ is a reptile.   An albatross   A sardine   A frog   A fox   An alligator   Half-n-half Clue   4. A _______ is a mammal.   crow   monkey   frog   crocodile   mackerel   Half-n-half Clue   5. A mosquito is _______.   an invertebrate   a vertebrate   6. A toad is _______.   a fish   a reptile   a mammal   a bird   an amphibian   Half-n-half Clue   7. An owl is _______.   a fish   a reptile   a mammal   a bird   an amphibian   Half-n-half Clue