Biology · ANIMAL KINGDOM
हिन्दीCnidarians exhibit a central body cavity with a single opening on a elevated structure. Name this opening and structure, and identify the type of digestion present in them.
Correct answer · Option 3
Single opening (mouth) on hypostome; digestion is both extracellular and intracellular
Explanation
Cnidarians have a central gastro-vascular cavity with a single opening, mouth on hypostome. Digestion is both extracellular and intracellular.