Question

Choose the correct answers from the alternatives given.
Presence of-nematocysts is a characteristic feature of the phylum:

• A. Coelenterata
• B. Annelida
• C. Echinodermata
• D. Porifera

Answer 1

The correct option is A Coelenterata

A nematocyst is a specialized cell in the tentacles of a jellyfish or other coelenterate, containing a barbed or venomous coiled thread that can be projected in self-defence or to capture prey. These, minute, elongated, or spherical capsule produced exclusively by members of the phylum Cnidaria also called Coelenterata (e.g., jellyfish, corals, sea anemones). Several such capsules occur on the body surface.

So, the correct option is, 'Coelenterata'.