Earthworms are:

If an earthworm releases the cocoon from the posterior end instead of the anterior end,then:

Choose the correct combination of labeling from the options given.

$A$ characteristic feature of the earthworm,$Pheretima$,is that:

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:

In $Pheretima$,septa are absent between which segments?