Where does the vertebrate come from?

Answer 1

its comes from the word verte means backbone

Answer 2

Vertebrates are believed to have evolved from ancient sea-dwelling organisms through a series of evolutionary changes over millions of years. The first vertebrates are thought to have appeared around 500 million years ago in the form of primitive fish with a simple backbone. From these early ancestors, a wide diversity of vertebrate species, including mammals, birds, and reptiles, eventually evolved.