chapter 12 test

Match it! Select the correct answer from the pull down...Good luck!

The major groups of fish are distinguished from one another by the types of _____they have

An object whose bouyancy is less than its weight

Unlike most fish, sharks

All snakes have only one

Amphibian means

Which of the folloing groups evolved from reptile?

Gills and lungs enable _______ to get into an animal's body

Some chordates do not have__________________