Question

archaebacteria are called primitive prokaryotes. why?​

Answer 1

archaebacteriaare called primitive prokaryotes because it doesn't have any nuclear membrane

Answer 2

Answer:

Archaebacteria is a group of most primitive prokaryotes. These bacteria differ from other bacteria in having a different cell wall structure and this feature is responsible for their survival in extreme conditions.  There are three main types of archaebacteria:

1.  Methanogens:

 These live in marshy areas and are anaerobes.

 Methanogens are present in the gut of several ruminant animals (e.g. cows and buffaloes) as symbionts and are helpful in fermentation of cellulose.

 They produce methane (biogas) from the dung of these animals.

Example: Methanobacterium, Methanococcus.

Halophiles occur in salt rich areas, e.g. sea beds and salt marshes. Example: Halobacterium, Halococcus.

Thermoacidophiles have ability to tolerate high temperature as well as acidity. They live in hot sulphur springs. Example: Thermus aquaticus  

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