Question

Cnidaria generally include animals which are

• A. Having nematoblasts
• B. Radially symmetrical and diploblasitc
• C. Having gastrovascular cavity
• D. All of the above

Answer 1

The correct option is D All of the above

Cnidaria is a phylum containing species of animals found exclusively in aquatic and mostly marine environments. They have two basic body forms as the swimming medusae and sessile polyps, both of which are radially symmetrical and diploblastic. Nematoblasts produces nematocysts which inject venom into the prey. They possess gastrovascular cavity, a primary organ of digestion and circulation.
Thus, the correct answer is option D.