Multiple choice

Radial symmetry is seen in

  1. mollusca

  2. protozoa

  3. starfish

  4. sponges

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Body symmetry is the similarly of parts in different regions and directions of the body. In radical symmetry a number of similar parts radiate out form a central axis. The body of the individual can be divided into equal halves by any plane passing through the centre from top to bottom. Ex. Some sponges (Sycon) f coelenterates (hydra, jelly fish) echinoderms (e.g., starfish).