Question

Q1-Answer the following question in short.

1.What are antibodies?

2.Classify bacteria on the basis of their shapes.

3.What is the role of bacteria in increasing the soil fertility?

4.What is pasteurisation?

Q2- Answer the following questions.

1.What are the major groups of microorganisms?

2.Write a short paragraph on the harmful effects of microorganisms.

Q3-Answer the following questions.

1.Mention any three ways through which pathogens are transmitted.

2.Explain various types of bacteria.

3.Explain how malaria is transmitted to humans.

4.Explain why antibiotics do not work against flu or any infection caused by viruses.

Q4-Answer the following question in detail.

1.Write the usefulness of microorganisms in our lives.

2.What is food poisoning? Explain different preservativer.​

Answer 1

Answer:

Antibodies are our inner immunity body

Answer 2

Answer:

1. the killed or weakened bacteria