$A$ true nucleus is absent in

The cell wall of halophilic bacteria is $NOT$ made up of which of the following?

Bacteria that take up the Gram stain are called . . . . . . and those that do not take up the Gram stain are called . . . . . . .

The name cyanobacteria refers to

$A$ characteristic feature linking Monera is .........

The nucleotide sequence in ribosomal $RNA$ provides the best evidence for the phylogeny of Monera. Based on this information,which are the most primitive Monerans?