Question

Some hyperthermophilic organisms that grow in highly acidic (pH = 2) habitats, belong to which of the following two groups?

• A. Liverworts and yeasts
• B. Eubaeteria and archaeabacteria
• C. Cyanobacteria and diatoms
• D. Protists and mosses

Answer 1

Answer: (B)

Eubaeteria and archaeabacteria

The hyperthermophilic organisms can survive in high temperatures in the range of about 70 - 120 ${}^o$ C. Some of these organisms can also survive in low pH of about 2. These organisms are the archaebacteria and bacterial species. These are prokaryotic organisms which can survive in extreme conditions.

Thus, the correct answer is option B.