Question

Sites of first, second and third moulting of Ascaris larva are ______________.

• A. Soil, lung, intestine
• B. Soil, alveoli, lung
• C. Soil, intestine, lung
• D. Liver, stomach, intestine

Answer 1

Answer: (A)

Soil, lung, intestine

The development of Ascaris larva takes place outside the body of host in soil and its cleavage starts in shelled eggs. First moulting takes place in soil in shelled egg whereas second and third moulting take place in alveoli of lung. The final moulting takes place in intestine.

So correct answer is "A"