Question

Which of the following statement can be related if an osmoconformer animal is placed in seawater?

• A. It will develop ionocytes to actively absorb the salts from outside
• B. It will develop a thick body cover to prevent entry of excess of water
• C. It will start passing diluted urine
• D. It will change osmolarity of its body fluid

Answer 1

The correct option is D It will change osmolarity of its body fluid

Osmoconformer animals are those animals which are able to maintain an osmolarity similar to the one in the surrounding environment. The osmolarity of these animals is equal to the osmolarity of their external environment. Most of the marine organisms like Echinoderms, jellyfish, marine crabs, lobsters are osmoconformers. If osmoconformer animal is placed in seawater, it will change osmolarity of its body fluid and minimize osmotic gradient. Osmoregulator animals depend on excretory organs to maintain water balance in their bodies.

Thus, the correct answer is 'It will change the osmolarity of its body fluid.'