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प्रश्न
Explain the harmful effects of micro-organisms.
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उत्तर
Microorganisms are not always beneficial can lead to various kinds of damage. This damage can be in terms of health of humans and animals, crop production etc. There are various kinds of microorganisms which are known to cause disease in humans and animals.
| Human disease | Pathogen |
| Tuberculosis | Bacteria |
| Measles | Virus |
| Chicken pox | Virus |
| Polio | Virus |
| Cholera | Bacteria |
| Typhoid | Bacteria |
Similarly there are certain species of microorganisms which cause disease in plants and affect the crop productivity.
| Plant disease | Pathogen |
| Citrus canker | Bacteria |
| Rust of wheat | Fungi |
| Yellow vein mosaic of bhindi (okra) | Virus |
संबंधित प्रश्न
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Unscramble the jumbled word underlined in the following statement.
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Suggest a suitable word for the following statement.
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Name two diseases that are caused by virus.
Write one important characteristic of virus.
Mention the symptoms and preventive measures undertaken for foot and mouth disease in animals.
Define the following:
Toxin
