$Ascaris$ has three lips. Identify their arrangement.

Which of the following organisms is a pseudocoelomate?

Choose the correct statement with reference to $Ascaris$.

Give the characteristics of Phylum Aschelminthes.

Syncytial epidermis occurs in

Which of the following statements are correct about the life cycle of $Ascaris \; lumbricoides$?
$(A)$. Infective agent - Embryonated egg with $II$ Juvenile
$(B)$. Fertilised eggs containing the unsegmented ovum are passed with faeces
$(C)$. Four moultings of the larva occur: two outside in soil within the egg-shell, one in lungs and one in intestine
$(D)$. Site of location of worm - small intestine.