Bacteria normally living in the human colon are beneficial. Comment.

Bacteria cannot live in highly salted pickle. Why?

Studies in the cell structure and physiology of bacteria and human being recognize the significance of a common ancestor in evolution. Write any three facts to prove this.

Fill up the second party by observing the relationship of the first party. Bacteria live in extreme salty areas: Halophiles. Bacteria live in marshy areas :………...