To which category of microorganisms do the following belong?

A. Amoeba	(i) Algae
B. Lactobacillus	(ii) Protozoa
C. Chlamydomonas	(iii) Bacteria
D. Pencillium	(iv) Fungi
E. Yeast	(v) Fungi
F. HIV	(vi) Virus

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.

Write 10 lines on the usefulness of microorganisms in our lives.

Write a short paragraph on the harms caused by microorganisms.

What are antibiotics? What precautions must be taken while taking antibiotics?