Question

Which of the following are osmoconformers?

• A. Hag fish
• B. Sharks
• C. Rays
• D. All of the above

Answer 1

Answer: (D)

All of the above

An osmoconformer is an organism whose body fluid solute concentration conforms to or is the same as the solute concentration of the external medium in which the organism lives. This conformity occurs because the organism cannot regulate or keep the solutes of its body fluid at a concentration that is different from that of the external medium. Soft-bodied aquatic animals such as worms and mollusks are osmoconformers.

So, the correct answer is option D.