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Question

Second instar larva of Ascaris is found in

A
Human lungs
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B
Human intestine
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C
Human liver
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D
Embryonated eggs
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Solution

The correct option is D Embryonated eggs
The Ascaris belongs to phylum Nematoda. It is a parasitic worm. The second instar of the larva of Ascaris is found in embryonated eggs and develops in the intestine. This is the infective stage and the moult to the third instar takes place in the liver.
So, the correct answer is option D.

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