Three domains of life is considered one the most difficult concept.
4 Questions around this concept.
Some hyperthermophilic organisms that grow in highly acidic (pH 2) habitats belong to the two groups:

"Stay in the loop. Receive exam news, study resources, and expert advice!"
Biology Textbook for Class XI
Page No. : 9
Line : 19
Explore on Careers360
Student Community: Where Questions Find Answers