Animal Kingdom Question 338

Question: Organisms attached to substratum generally possesses

[CBSE PMT 1995]

Options:

A) Asymmetrical body

B) Radial symmetry

C) One single opening of digestive canal

D) Cilia on the surface to create water current

Show Answer

Answer:

Correct Answer: B

Solution:

Radial symmetry is a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis, characteristic of sessile and bottom-dwelling animals, as the sea anemone and starfish.