$Trichodesmium\, erythraeum$,which gives the Red Sea its characteristic red color,is a/an ........

Most living organisms cannot survive at temperatures above $45\,^{\circ}C$. How are some microbes able to live in habitats with temperatures exceeding $100\,^{\circ}C$?

What type of microorganism is $Nostoc$?

The elementary cell body in $Mycoplasma$ performs the function of:

Some hyperthermophilic organisms that grow in highly acidic habitats are divided into two groups,which are called:

Which of the following best describes the biological nature of $Cyanobacteria$?