Vertebrates have a vertebral column by which the notochord is replaced by multiple vertebrae that kind a backbone. The vertebrae encompass and shield a nerve twine and provide the animal with structural assist. Vertebrates have a properly-developed head, a definite mind that is protected by a cranium, and paired sense organs. They also have a extremely environment friendly respiratory system, a muscular pharynx with slits and gills (in terrestrial vertebrates the slits and gills are tremendously modified), a muscularized intestine, and a chambered heart.
They differ in measurement from the smallest fishes to elephants and blue whales, that are the biggest animals to have ever lived on Earth. Vertebrates have tailored to living underground, on the surface, in the air and in water. They eat plants, invertebrates (animals with out backbones) and each other. Moreover, an additional difference between vertebrates and chordates is that the vertebrates include birds, reptiles, mammals, … Read More