Choose the correct match.

Options

A. Corals - eurythermal
B. Man - eurythermal
C. Shark - homeothermic
D. Birds - poikilothermic

Answer

To solve the question of choosing the correct match, we need to analyze each option provided and determine if the matches are accurate based on biological classifications of organisms.

### Step-by-Step Solution:

1. **Analyze the First Option: Corals - Urothermal**
- Corals are known to form coral reefs, which are primarily composed of calcium carbonate (CaCO3).
- Corals are classified as **stenothermal**, meaning they can only tolerate a narrow range of temperatures.
- Therefore, this option is incorrect.

2. **Analyze the Second Option: Man - Urothermal**
- Humans (man) are classified as **eurythermal**, which means they can tolerate a wide range of temperatures.
- This option is correct because humans can survive in various temperature conditions.
- Thus, this is the correct match.

3. **Analyze the Third Option: Shark - Homeothermic**
- Sharks are cold-blooded animals, which means they do not maintain a constant body temperature and are classified as **poikilothermic**.
- Therefore, this option is incorrect.

4. **Analyze the Fourth Option: Birds - Poikilothermic**
- Birds are classified as **homeothermic**, meaning they maintain a constant body temperature regardless of the environment.
- Hence, this option is also incorrect.

### Conclusion:
The only correct match from the options provided is the second one: **Man - Urothermal**.