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Kingdom Animaliya — BIOLOGY STD 9 — Question

ICSE BoardEnglish MediumSTD 9BIOLOGYKingdom Animaliya2 Marks
Question
Mention the unique features of cnidaria.
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Answer

Their bodies are asymmetrical. Body shape can be cylindrical, vase-like, rounded or sac-like. They are diploblastic animals with two layers, the outer dermal layer and the inner gastral layer. There is a gelatinous, non-cellular mesoglea, in between these two layers.

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