Match the characteristics to the correct phylum. organisms lack symmetry organisms have specialized stinging cells adult forms are sessile two types of body plans exist—polyp and medusa organisms obtain food by filtering water phenomenon of alternation of generation is observed reset next

The organisms belong to the Cnidaria, which is a phylum of Kingdom Animalia. The characteristic features of the phylum are as follows-

1. They are aquatic organisms dominating the marine water.

2. Majority of them are sessile and have the cnidocytes or the stinging cells for capturing prey and defense from predators.

3.  They are polymorphic and have two basic body forms called the motile medusa and the sessile polyps.

4. They are diploblastic and filter food particles out of the water to obtain nutrients.

5. The life cycle involves the both the polyp and medusa stages called the alternation of asexual and sexual phases.

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