Members of the Phylum Chordata are characterized by having an internal skeleton and a backbone or notochord, with examples including fish, amphibians, reptiles, birds, and mammals.

Authors

• Person: Not available Organization: Britannica
  biological classification - Students | Britannica Kids | Homework Help

Sources

• biological classification - Students | Britannica Kids | Homework Help kids.britannica.com Britannica via serper

Referenced by nodes (4)

• fish concept
• birds concept
• mammals concept
• amphibians concept