Give classification chart of non-chordates with examples.
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The science of classifying organisms is called taxonomy. Every species discovered so far are classified into five kingdoms – one among them is Kingdom Animalia or the animal kingdom. The members of kingdom Animalia are further classified into different Phyla, Class, Order, Family, and Genus based on certain identifiable characteristic features.
Classification of Animal Kingdom
One of the most fundamental forms of classification of animals is the presence or absence of the notochord. Hence, two major groups exist, namely: Chordates and Non-chordates.
Non-chordates and the Chordates
The notochord is a flexible rod made out of a material similar to cartilage. If an animal has a notochord during any stage of its life, it is classified as a chordate. Contrary to popular belief, chordates do not exclusively include vertebrates.
There are invertebrates that possess a notochord during some point in their lives and hence, are classified as chordates. Thus all vertebrates are chordates but not all chordates are vertebrates.
Non-chordates
Non-chordates are animals without a notochord – the rod-like elastic structure that supports the body. This phylum consists of a small group of worm-like, marine species with an organ-system level of organization.
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