00:10
00:09
00:08
00:07
00:06
00:05
00:04
00:03
00:02
00:01
| cold-blooded aquatic vertebrates with gills, often have fins and elongated body covered with scales |
| warm-blooded vertebrate with feathers, wings, scaly legs and beak which bear young in shelled eggs |
foregut fore·gut (fôr'gŭt')
n.
The anterior part of the embryonic alimentary canal of a vertebrate from which the pharynx, lungs, esophagus, stomach, liver, pancreas, and duodenum develop.