Question

What is the classification of the animal kingdom on the basis of the organization?

Answer 1

Animal kingdom:

1. All the organisms existing in the animal kingdom are multicellular.
2. On the basis of the level of organization of cells, the animal kingdom is classified into several types.

Classification of the animal kingdom on the basis of the level of organization:

1. Porifera: Organisms have the cellular level of organization in which the mass of cells is arranged to perform certain body functions.
2. Coelenterata: These organisms exhibit tissue level of organization, where cells are arranged to form tissues.
3. Platyhelminthes, Aschelminthes, Annelids, Arthropods, Molluscs, Echinoderms, and Chordates: These organisms possess an organ level of organization.
4. Many more organisms have organ level of organization but the function and classification depend on other features as well.