1.

What are the difficulties that you would face in the classification of animals If common fundamental features are not taken into account?

Answer»

In spite of differences in the structure of different animals, there are common fundamental features for various types of animals in relation to the arrangement of cells, body symmetry, nature of coeloms, patterns of digestive, circulatory or reproductive systems.

These features are necessary because they help in grouping organisms with more similar traits, arrangement and classification of animals as primitive or highly developed. It provides a basis for classification, helps in researching closely related species, etc.,



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