Antibiotics are prepared by the microorganisms :

• Bacteria and Virus

• Virus and Fungus

• Bacteria and Fungus

• Protozoa and Fungus

Yeast is used in the production of

The following is an antibiotic

Carrier of malaria-causing protozoan is

The most common carrier of communicable diseases is

The bread or idli dough rises because of

The process of conversion of sugar into alcohol is called

Match the following option.

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

What are the major groups of microorganisms?

Name the microorganisms which can fix atmospheric nitrogen in the soil.