|Most mammals and birds are ____ (warm-blooded).
|The ____ (top) shell of a turtle is called the carapace.
|Most reptiles, amphibians, and fish are ____ (cold-blooded).
|Wolves, owls, bats, and crickets are ____ (active at night).
|Most roundworms are free-living. Most flatworms are ____.
|The ____ (bottom) shell of a turtle is called the plastron.
|Cobras and vipers have fangs that inject ____ saliva.
|Most birds and reptiles are ____ (egg-laying).