Vertebrates - animals that have a backbone. The word comes from vertebrae, the bones that make up the spine. Five main groups of vertebrates: fish, birds, reptiles, amphibians and mammals. A few tens of thousands of species have been identified.
◂Biology Worksheets and Study Guides High School. Vertebrates I
The student demonstrates an understanding of the structure, function, behavior, development, life cycles, and diversity of living organisms by describing the structure-function relationship