1. A _______ is warm-blooded.   lizard   raven   2. A _______ is a vertebrate.   herring   jellyfish   3. A whale is _______.   a fish   a mammal   a reptile   an amphibian   a bird   Hint Half-n-half Clue   4. A snake is _______.   a bird   an amphibian   a mammal   a reptile   a fish   Half-n-half Clue   5. An _______ is an invertebrate.   albatross   amoeba   6. _______ is a reptile.   An alligator   A frog   A sardine   An albatross   A fox   Half-n-half Clue   7. An owl is _______.   a mammal   an amphibian   a bird   a reptile   a fish   Half-n-half Clue