Question

The presence of nematocysts and radially symmetrical body is shown by

• A. Porifera
• B. Coelenterates
• C. Mollusca
• D. Amphibians
• E. Polychaetes

Answer 1

Answer: (B)

Coelenterates

Phylum coelenterata is characterized by the presence of the following feature:

(1) Members are mostly marine.

(2) Usually radially symmetrical in the adult stage.

(3) Possess tissue level of body organisation.

(4) Presence of nematocysts (stinging cells) of varying complexity are organs of defense and offense.

So, the correct answer is option B.