Vertebrate

A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X  Y   Z

 

Vertebrate:  a major taxonomic group consisting of any organism with an internal skeleton that contains a segmented spine or backbone. Vertebrates include fish, amphibians, reptiles, birds, and mammals.