Question

Study the following statements and select the correct ones.

(i) Methanogens are archaebacteria that produce methane in marshy areas.
(ii) Nostoc is a filamentous blue-green alga that fixes atmospheric nitrogen.
(iii) Many members of the genus Glomus form mycorrhiza.

• A. (i) and (ii)
• B. (i) and (iii)
• C. (ii) and (iii)
• D. (i), (ii) and (iii)

Answer 1

The correct option is D (i), (ii) and (iii)

1. Methanogens are archaebacteria belong to the domain of archaea, commonly found in wet, marshy areas, They produce methane gas.

2. Nostoc is the filamentous blue-green alga. They form gelatin body which contains trichomes.

3. Glomus and it's all species form symbiotic relationships (mycorrhizas) with plant roots.

So the correct answer is option D.