Mention the taxonomy of bacteria. Bacteria play both useful and harmful role. Justify.

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Solution

- Bacteria are prokaryotes that are included in the kingdom Monera.
- Useful role of bacteria includes:
- Some bacteria help in decomposition of organic matter and thus, helps in keeping the environment clean.
- Bacteria also helps in production of food. For example, Lactobacillus helps in conversion of milk to curd.
- Some bacteria helps in nitrogen fixation and provides nutrients to the soil.

- Harmful role of bacteria includes:
- Causative agent for various diseases in living organisms.
- Responsible for food spoilage and food poisoning.

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