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CGP EDU Academic Team
Published on: August 21, 2026
Consider the following statements about cnidarians:
(I) They have tissue level of organization and triploblastic.
(II) Digestion is extracellular and intracellular.
(III) Corals secrete calcium bicarbonate form a skeleton.
(IV) Corals may harbour some photosynthetic dinoflagellates for taking nutrition.
(V) They possess a central gastro-vascular cavity with a single opening mouth in hypostome.
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