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Question

Third moulting of Ascaris occurs in

A
Liver
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B
Egg
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C
Lung
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D
Intestine
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Solution

The correct option is C Lung
Life stages in ascaris is described as follows:

1st stage juvenile: Called "Rhabditoid". Found in soil. Forms in 9 days from fertilised egg.

2nd stage juvenile :Infective stage. Forms 10 days after 1st moulting. Swallowed by human.

3rd stage: juvenile and 4th stage juvenile.: Found in alveoli of lungs.

1st moulting :In soil

2nd moulting and 3rd moulting :Lungs

4th moulting:Host's intestine.

So, the correct answer is 'Lung'.

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