Multiple choice

Choose the correct statement with reference to Ascaris.

  1. Hatching of embryos takes place in the stomach due to lytic enzyme

  2. Adulthood is reached inside the body of the host in ten days

  3. Development and moulting takes place in the alveoli of lungs

  4. Hatching of embryos takes place within ten hours
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Larva of Ascaris first enter the host intestine and reaches the liver through portal system and lymph channel now it reaches to heart and then to lungs. In lungs, larva settles down in capillaries of alveoli for sometime and undergoes two moultings one after the other. 

Keep practicing — related questions