Prokaryotic organisms are included under:

The only group of organisms capable of using inorganic compounds as a source of energy is ........

Cyanobacteria and heterotrophic bacteria have been clubbed together in eubacteria of kingdom-Monera as per the "five kingdom classification", even though the two are vastly different from each other. Is this grouping of the two types of taxa in the same kingdom justified? If so, why? Discuss the cellular composition of cyanobacteria and heterotrophic bacteria that make them classified as eubacteria.

Which of the following kingdoms consists of organisms that lack a well-defined nucleus?

The structure present in cyanobacteria $(BGA)$ that helps in nitrogen fixation is

Find out the incorrect statement in the following $:-$