Write the types of respiration seen in frog.

Differentiate between peristomium and prostomium in earthworm.

Give the location of clitellum and spermathecal openings in Lampito mauritii.

Differentiate between tergum and a sternum.

Head of cockroach is called hypognathous. Why?

Distinguish anal cerci and anal style.

What is hepatic caecae?

Differentiate hepatic caecae and malpighian tubules.

How is cutaneous respiration made possible in earthworm.

Give a short note on the nervous system of the earthworm.