Question

Scypha has

• A. Spherical symmertry
• B. Bilateral symmetry
• C. Radial symmetry
• D. No symmetry

Answer 1

Answer: (C)

Radial symmetry

A. In spherical symmetry, an organism can be cut into two identical halves through any plane of the body.

B. In bilateral symmetry, an organism can be cut into two identical halves through only one or two vertical planes of the body.

C. In radial symmetry, a number of similar parts radiate out from a central axis. The body of the individual can be divided into two equal halves by any plane passing through the center from top to bottom. This type of symmetry is found in sponges.

D. When an organism cannot be cut into two identical halves through any plane of the body, it is asymmetrical.
Scypha (Sycon), a sponge, has radial symmetry.

So, the correct answer is 'Radial symmetry'.