Question

Some hyperthermophilic organisms, that grow in highly hot environments from 60${}^0$C and upwards belong to which of the following groups?

• A. Liverworts and yeasts
• B. Eubacteria and archaea
• C. Cyanobacteria and diatoms
• D. Protists and mosses

Answer 1

Answer: (B)

Eubacteria and archaea

• A hyperthermophile is an organism that thrives in extremely hot environments—from 60 °C (140 °F) upwards. The optimal temperature for the existence of hyperthermophiles is above 80 °C (176 °F).
• For example, P. fumarii is a hyperthermophile, indicating that this organism grows best at extremely high temperatures (70–125 °C).
• The hyperthermophiles belong to the group Eubacteria and archaea.
• So, the correct answer os 'Eubacteria and archaea'.