AP BIOLOGY

Detailed explanation-1: -An animal that has a backbone and skeletal system is called a vertebrate. Vertebrates are animals with backbones and skeletal systems. A backbone can also be called a spine, spinal column, or vertebral column. The individual bones that make up a backbone are called vertebrae.

Detailed explanation-2: -The phylum chordata (animals with backbones) is divided into five common classes: fish, amphibians, reptiles, mammals and birds.

Detailed explanation-3: -Animals that possess a backbone is classified as a vertebrate.

Detailed explanation-4: -The backbone is is a column of bones that supports the body, and also protects the spinal cord. The back is made up of many separate bones, called vertebrae. The backbone is part of a vertebrate’s supportive internal skeleton. Most vertebrates have two pairs of limbs.

Detailed explanation-5: -Vertebrates are animals that have a backbone or spinal column, also called vertebrae.