What are the characteristics used to classify animals?

Animals are classified based on several key characteristics, including their body structure, mode of reproduction, and evolutionary relationships. One of the primary criteria used for classification is the presence or absence of a backbone, dividing animals into two broad groups: vertebrates (with a backbone) and invertebrates (without a backbone). Other characteristics used include the type of body symmetry (radial or bilateral), the presence of appendages, the presence of a specialized respiratory system, and the method of obtaining nutrition (herbivore, carnivore, omnivore). Additionally, animals are and classified into different species based on their ability to interbreed and produce fertile offspring. Classifying animals based on these characteristics helps scientists understand the diversity of the animal kingdom and their evolutionary relationships.

This mind map was published on 26 October 2023 and has been viewed 98 times.