The blue-green algae are so called as they have,in addition to the green pigment chlorophyll,a blue pigment known as:

Who recorded pleuropneumonia in cattle?

$Vibrio$ $cholerae$ is a motile bacterium belonging to which group based on flagellar arrangement?

Which kingdom consists of organisms that possess a nucleoid?

The chief component of the bacterial cell wall is:

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: