Answered

Students research unicellular, prokaryotic
organisms that live in harsh environments such as volcanic hot springs,
brine pools, and anaerobic black organic mud. Which of these groups are
the students most likely researching?



Archaebacteria


Eubacteria


Plantae


Protista



Answer :

Archaebacteria is the right answer. 
They are currently known as Archaea, name"Archaebacteria" is a bit outdated. These unicellar prokaryotes were discovered relatively recent (in 70ties).

Answer:

Its about Archaebacteria.

Explanation:

Archea means ancient. Archaebacteria are unicellular organisms. All the living forms initially were classified into five kingdom classification which includes: Monera (includes all prokaryotes), protista, fungi, plantae and animalia. Later several genetics and molecular biology studies revealed that a class of prokaryotes is different from all other modern bacteria, these were called archaebacteria. They live in extreme environments like volcanic hot springs, extreme salty or very acidic surroundings.