MAMMALS WARM BLOODED HAVE HAIR OR FUR BREATHES OXYGEN

REPTILES ARE COLD BLOODED ANIMALS THAT LAY EGGS.

HAVE FEATHERS LAY EGGS WARM BLOODED BREATHE AIR

COLD BLOODED LAY EGGS SOME HAVE LIVE BIRTH HAVE GILLS

COLD BLOODED SOME LAY EGGS HAVE NO BACK BONE OR SPINAL COLUMN SOMEE BREATHE UNDERWATER SOME BREATHE AIR