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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?
Explain canning.
What is fermentation?
Name the modes of transmission of communicable disease.
Define virus.
How do microorganisms help in agriculture?
What are microorganisms?
Explain how malaria is transmitted to humans.
Where are microorganisms found?
What are antibodies?
Mention any three ways through which pathogens are transmitted.
Explain why antibiotics do not work against flu or any infection caused by viruses.
Explain various types of bacteria.
What are communicable diseases?