The vertebrates, or members of the clade Vertebrata, are simply the animals that have these vertebrae. This includes fish, amphibians (including frogs), reptiles, birds and mammals. In sharks the vertebrae are not bony, but cartilagenous, but they are still present and sharks are also vertebrates. read more
This includes all frogs and toads. A frog is a vertebrate because it has a backbone called a vertebra. They are classified in the phylum chordata which includes the vertebrates. The difference between a vertebrate and an invertebrate is the fact that vertebrates have a spinal cord (or back bone), and invertebrates do not. read more