The female genital pore in Pheretima is present in the segment . . . . . . .

In $Pheretima$,there are red-coloured round bodies in the $4th$,$5th$,and $6th$ segments above the alimentary canal. They are believed to be involved in:

Draw a labelled diagram of the reproductive organs of an earthworm.

The clitellum of $Pheretima$ $posthuma$ is primarily associated with which of the following?

Which of the following respiratory pigments is present in the blood of $Pheretima$?

In Earthworm,neurons are