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Micro-organisms friend and foe — Science STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8ScienceMicro-organisms friend and foe3 Marks
Question
How do mosquitoes carry disease-causing micro-organisms and spread diseases?
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Answer

Mosquito acts a carrier of disease-causing micro-organism and spreads diseases from one person to another. They carry disease-causing micro-organisms (microbes) inside its body. Female Anopheles mosquito is a carrier of malarial parasite. When it bits a person suffering from malaria, it sucks the blood of that person which contains the malarial parasite microbes. When this infected mosquito bites a healthy person, it transfers the microbes into his blood stream, hence the healthy person also gets malarial disease.

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