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.