What is Notochord?

and Notochord is defining the characteristics of the phylum chordata , a large and diverse biological group that includes all animals with spines or spines, along with more primitive chords. The structure has very large cells that are densely arranged in a protective cloak. Chordates are divided into three sub -phyla, depending on the form of their Notochords and when they appear. In every development phase, it acts as a form of support for the animal it has and gives animals the ability to do things like walking upright. The animals in this group are pelagic, which means that they are in the world oceans and there are a number of representative species, most of which are known only to biologists. These animals, however, provide insight into the development of chords, but show the Notochord on the Narana phase of development. The structure leads all the way along the body, even to the head, and lacks a protective layer of bone, such as the spine. It acts as axial support and provides a strong core for the animal. Notochord is a highCE flexible, but is not compressible, allowing the animal to move freely without damaging the structure.

in the highest class of chords, vertebrates, nototochord only exists when the animal is in embryonic form. As the turnover evolves, it is first anchored and then replaced by the backbone, protective cases of bones that obscure fine spinal cord. The spinal column is able to support a much larger and more complex body and is much stronger than Notochord. This was permitted vertebrates to make a jump to the ground and evolve on known species such as humans.

There is a Notochord in a certain form in all chords when an animal is in a larva or an embryonic stage. Its development helps to shape which kind of animal will change, be it a bag similar to a tunicate or purely bred Norwegian horses Fjord. The development of this structure is the main progress in evolution because it has allowed animals to beMuch larger and more complicated, drastic departure from the simpler order of animals that previously existed.