Cnidaria: Features & Classification — NEET Biology
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They are aquatic, mostly marine, sessile or free-swimming, radially symmetrical animals. The name cnidaria is derived from the
🖼️Related NCERT figure: Diagram showing examples of Coelenterata with outline of their body forms. Shows medusa (jellyfish-like umbrella shape) and polyp (cylindrical upright form with tentacles) body forms. (Figure 4.6 Examples of Coelenterata indicating outline of their body form : (a) Aurelia (Medusa) (b) Adamsia (Polyp))
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QuestionPractice Question
Assertion (A): All coelenterates are marine animals. Reason (R): Coelenterates are radially symmetrical animals with cnidoblasts.
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