Question

Is prostomuim a metamer

Answer 1

Answer:

yes prostomuim a metamer

Answer 2

Answer:

Whether the last common bilaterian ancestor was already segmented is intensely debated. Annelids display broad morphological diversity but many species are among the most homonomous metameric animals. The front end (prostomium) and tail piece (pygidium) of annelids are classically described as non-segmental.