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Why is yeast used in the baking industry for making bread, cakes and pastries?
Why are viruses different from other microorganisms?
Name the modes of transmission of communicable disease.
Explain canning.
What is fermentation?
How do microorganisms help in agriculture?
Define virus.
What are microorganisms?
Explain why antibiotics do not work against flu or any infection caused by viruses.
Where are microorganisms found?
Explain how malaria is transmitted to humans.
What are antibodies?
Mention any three ways through which pathogens are transmitted.
Explain various types of bacteria.
What are communicable diseases?