Polymorphism is the phenomenon by which different individuals included in the same colony have different forms of existence. It is exhibited by many organisms in the animal kingdom. The different forms may have different functions associated. It is mainly present in the lower phyla in the animal kingdom.
Polymorphism is exhibited by members of Kingdom Cnidaria. The different forms are polyp and medusa, where polyps are free-swimming or motile and medusa is sessile or stationary. Some species belonging to this phylum can exist in two different forms alternatively. An example of organisms exhibiting polyp form is the Hydra species. Medusa form is exhibited by Jellyfishes which has an umbrella-like shape.
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Негізгі бет Polymorphism in Cnidaria | Animal Diversity | BZYCT 131 | LSE 9
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