A World of Vertebrates Crossword

animal with scales, gills, and lives in water
hard bony body covering made of keratin, just like your fingernails
class of vertebrate that has hair and breathes air through lungs
word that means warm-blooded
eats only plants
the body organs that are used to breathe air
what the poison that is in the fangs of some snakes is called
place where an animal lives and its surroundings
the outer covering of birds
another word for an egg-laying animal
animal with a backbone
animal that is born in the water but lives on land and breathes air as an adult
the organ that helps aquatic animals get their oxygen (to breathe)
another word for cold-blooded
cold blooded animal with scales on the outer covering of i ts body
class of vertebrates that a human belong to
animal that hunts for its food and eats other animals
mammal that carries babies in their pouch
mammal that lays eggs, which is an exception to the rule
marsupial that lives in Australia and is known for its high hops
when an animal can blend in with its surroundings so it cannot be seen