The mode equivalent to sexual reproduction in bacteria is:

Identify the correct statement regarding bacteria.

In the five-kingdom classification,the kingdom that includes blue-green algae,nitrogen-fixing bacteria,and methanogenic archaebacteria is:

The cells of cyanobacteria and bacteria exhibit similarity in having

Given below are two statements:
Statement $I$: Mycoplasma can pass through less than $1 \ \mu m$ filter size.
Statement $II$: Mycoplasma are bacteria with cell wall.
In the light of the above statements,choose the most appropriate answer from the options given below:

The organisms responsible for the production of methane are ......... .