Question
Shark is eurythermal, while polar bear is stenothermal. What is the advantage the former has and what is the constraint the latter has?
✓
Answer
- Shark is eurythermal because it can tolerate and thrive in a wide range of temperatures.
- Polar bear is stenothermal as it can tolerate and thrive only in a narrow range of temperatures.
- The thermal tolerance determines the geographical distribution of organisms; hence shark can live in a wide variety of places but the polar bear is restricted only to a narrow range (polar regions or ice-capped mountains), beyond which it cannot survive.
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