AP BIOLOGY

Detailed explanation-1: -Vertebrates are the species which have a vertebrae or backbone. The vertebrate animals include reptiles, humans, birds, fish, mammals and amphibians. These are also known as Craniata. Vertebrates consist of animal species inside the Subphylum Vertebrata which means chordates having backbone.

Detailed explanation-2: -Fish are aquatic vertebrate animals that have gills but lack limbs with digits, like fingers or toes. Recall that vertebrates are animals with internal backbones. Most fish are streamlined in their general body form.

Detailed explanation-3: -A vertebrate is an animal that has a backbone and a skeleton. Vertebrate animals include humans. When you think about vertebrates, think about bones: this word has to do with animals that have a lot of bones, in the form of a skeleton. It especially refers to animals with a backbone, which protects their spinal cord.

Detailed explanation-4: -The phylum chordata (animals with backbones) is divided into five common classes: fish, amphibians, reptiles, mammals and birds.

Detailed explanation-5: -Mammals, fish, reptiles, amphibians, and birds are examples of Vertebrates.