Which of the following may be referred to as 'badsonia'?

Which of the following domains lacks a cell wall?

Which of the following is not a prokaryote?

Which of the following is an example of a microorganism?

Select the correct combination of the statements $(i-iv)$ regarding the characteristics of certain organisms.
$(i)$ Methanogens are archaebacteria which produce methane in marshy areas.
$(ii)$ Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen.
$(iii)$ Chemosynthetic autotrophic bacteria synthesize cellulose from glucose.
$(iv)$ Mycoplasma lack a cell wall and can survive without oxygen.
The correct statements are:

In the five-kingdom system,the main basis of classification is