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The most common carrier of communicable diseases are

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Important Questions on Diseases and Immunity

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The first moult of Ascaris larva results in __________ larva.
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Explain elaborately about Typhoid fever.
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What is exogenous phase in the lifecycle of Ascaris?
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How does amoebiasis occur in human being?
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Identify the organism which did not cause ringworm.
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A boy showed symptoms of constipation, abdominal pain, stools with mucous and blood clots. Predict the disease and its pathogen. How does the disease get transmitted?
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What are the symptoms of malaria?
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The spoilage of food can be prevented by using vitamins like _____ and _____.
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In the given diagram of the trophozoite stage of Entamoeba. Identify parts labelled as 1, 2, 3, 4, 5, 6 and select the option.

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How is the following disease transmitted?

Ringworm

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Differentiate between Amoebiasis and Filariasis.
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Arrange the following statements in sequence regarding Amoebiasis infection:
1) The trophozoites multiply by binary fission and produce cysts and both stages are passed in the faeces.
2) Trophozoites migrate to the large intestine.
3) Excystation occurs in the small intestine and trophozoites are released.
4) Infection by Entamoeba histolytica occurs by ingestion of mature cysts in fecally contaminated food, water, or hands.
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Write about cause, symptoms and modes of transmission of Amoebiasis.
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What is amoebiasis? Write the name of its causative agent.
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Name the pathogen of Amoebic dysentery. Mention its two symptoms and two preventive measures.
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In the life cycle of Plasmodium, fertilization takes place in
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Which one of the following is not correctly matched?
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 Identify the ODD term in each set and name the CATEGORY to which the remaining three belong:
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Assertion (A): Entamoeba histolytica is a monogenetic parasite.

Reason (R): It is infected by contaminated food.

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The active form of Entamoeba histolytica is a protozoan parasite in the