What is the purpose of dissecting a worm?

What is the purpose of dissecting a worm?

Purpose: In this lab, you will dissect an earthworm in order to observe the external and internal structures of earthworm anatomy, whilst following the all-important lab safety procedures.

How do you kill earthworms for dissection?

Kill the earthworms in alcohol Put the earthworms in the alcohol one at a time (rather than a whole handful all at once) so they don't get tangled up into a big mess of earthworms. After a few seconds, the earthworm will become anesthetized and relax into a mostly extended position.

What is the middle part of a worm called?

The clitellum is a thickened glandular and non-segmented section of the body wall near the head in earthworms and leeches, that secretes a viscid sac in which eggs are stored. It is located near the anterior end of the body, between the fourteenth and seventeenth segments.