|
Most mammals and birds are ____ (warm-blooded).
|
dorsal
|
|
The ____ (top) shell of a turtle is called the carapace.
|
ectothermic
|
|
Domesticated animals that have returned to the wild are ____.
|
endothermic
|
|
Most birds and reptiles are ____ (egg-laying).
|
feral
|
|
Most roundworms are free-living. Most flatworms are ____.
|
oviparous
|
|
Mammals are classified as monotreme, marsupial, or ____.
|
parasitic
|
|
Most reptiles, amphibians, and fish are ____ (cold-blooded).
|
placental
|
|
Cobras and vipers have fangs that inject ____ saliva.
|
venomous
|
