Which one is isotonic with surrounding sea water?
Correct answer: B. Shark
- A. Bony Fishes
- B. Shark
- C. Carp
- D. Paramecium
Explanation
Sharks are isotonic with sea water, meaning their body fluids have the same concentration of dissolved substances as the water. This allows them to maintain water balance easily. Bony fishes are hypotonic, needing to regulate their salt concentration. Carps are hypertonic in freshwater, while Paramecium is hypotonic due to lower solute concentration in the environment.
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