Not divided into segments.
- The developmental mode of polychaetes is characterized by the production at hatching of an initially unsegmented trochophore larva.
- To gain a more accurate understanding of the segmented or unsegmented nature of these four taxa, two types of data must be gathered.
- Flatworms are unsegmented, bilaterally symmetrical worms that lack a coelom but that do have three germ layers.
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.