Can microorganisms be seen with the naked eye? If not, how can they be seen?

(b) Human eye can change the focal length of the eye lens to see the objects situated at various distances from the eye. This is possible due to the power...

The size of an atom is so small that it is not possible to see it with naked eyes. Also, atom of an element does not exist independently.

Fill in the blanks:  (a) Microorganisms can be seen with the help of a ____microscope_____.  (b) Blue green algae fix ___nitrogen_____ directly from air to enhance fertility of soil.  (c) Alcohol is produced...

Curd can be used as a sample for the study of microbes. Curd contains numerous lactic acid bacteria (LAB) or Lactobacillus. These bacteria produce acids that coagulate and digest milk...

(b) accommodation.

(a) far away from the eye

(d) the eye is not able to decrease the focal length beyond a limit.

The correct answer is (a) =x

(b) L > u (d) L > 2fo.