Which of the following are found in extreme saline conditions?

1. Archaebacteria

2. Eubacteria

3. Cyanobacteria

4. Mycobacteria

Methanogens belong to

1. eubacteria

2. archaebacteria

3. dinoflagellates

4. slime moulds

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the

(1) thermoacidophiles

(2) methanogens

(3) eubacteria

(4) halophiles

Which one of the following statements is wrong?

(1) Golden algae are also called desmids

(2) Eubacteria are also called false bacteria

(3) Phycomycetes are also called algal fungi

(4) Cyanobacteria are also called blue-green algae

Archaebacteria differ from eubacteria in

(1) cell membrane structure

(2) mode of nutrition

(3) cell shape

(4) mode of reproduction