Which of the following may be used in the reclamation of soil?

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 is the shape of $Vibrio$ $cholerae$?

Which feature indicates that cyanobacteria resemble higher green plants?

In which of the following is there no sexual reproduction?

Which of the following statements is true regarding Archaebacteria?