Write a short paragraph on the harms caused by microorganisms.
Answer
Microorganisms are harmful in many ways,they can be harmful for plants,animals as well as humans beings.Such disease causing microorganisms are called Pathogens
Disease causing Microorganism in Humans
When a person suffering from cold sneezes,drops of moisture are spread in air.These drops contain thousands of virus,
When it reaches healthy person,he gets infected
These can also be spread by
Physical contact(Touching an infected person)
Water(Drinking water from same utensil)
Food(Eating food from same utensil)
Disease causing Microorganism in Animals
Some insects and animals carry harmful microorganisms(pathogens) on them
Example
Housefly
They stick on garbage and pathogens sick to body
Mosquito
Female Aedes mosquito acts as carrier of dengue virus
Disease causing Microorganism in Plants
Microorganisms cause disease in plants which reduces the yield of the crop,these can be reduced by using some chemicals which kill the microbes.
Diseases in Plants
Bacteria
Fungi
Virus
