Which of the following survives a temperature of 104 to `106^(@)C` :

Options

A. Marine Archaebacteria
B. Hot water spring thermophiles
C. Seeds of angiosperms
D. Eubacteria

Answer

To solve the question of which organism can survive temperatures of 104 to 106 degrees Celsius, we can analyze the options given:

1. **Marine Archaebacteria**:
- These organisms are adapted to high saline environments, not extreme temperatures. Therefore, they are not capable of surviving in temperatures as high as 104 to 106 degrees Celsius.
- **Conclusion**: This option is incorrect.

2. **Hot Water Spring Thermophiles**:
- Thermophiles are organisms that thrive at high temperatures. They possess specialized adaptations, such as branched-chain lipids in their plasma membranes, which provide thermal resistance. This adaptation allows them to survive in extreme heat, such as that found in hot springs.
- **Conclusion**: This option is correct.

3. **Seeds of Angiosperms**:
- Angiosperm seeds are generally adapted to survive in normal temperature ranges and do not have the adaptations necessary to withstand extreme heat.
- **Conclusion**: This option is incorrect.

4. **Eubacteria**:
- Eubacteria, or true bacteria, typically have straight-chain lipids in their membranes, which do not provide the necessary thermal stability to survive in high-temperature environments. They are usually found in moderate temperature conditions.
- **Conclusion**: This option is incorrect.

Based on the analysis of each option, the correct answer is **B: Hot Water Spring Thermophiles**, as they are specifically adapted to survive in the extreme temperatures of 104 to 106 degrees Celsius.