--âAfter these modules I understand the Cub Scout program.â. --âAfter completing the Before the First Meeting modules, I feel prepared for my Pack Committee meeting.â. --âThe modules in the First 30 Days training segment were relevant to my position.â.
The head and the rear of the body is not segmented. The digestive system of species in this phylum runs the length of the body. Food is taken in at one end of the body and expelled at the other end. Annelids have two sets of muscles that help them move.he head and the rear of the body is not segmented. The digestive system of species in this phylum runs the length of the body. Food is taken in at one end of the body and expelled at the other end. Annelids have two sets of muscles that help them move.
Molluscs and annelids also share a eucoelomate body cavity; i,e,. the coelom is completely lined with mesoderm tissue. A major difference between them is that annelids are segmented and have a closed circulatory system whereas molluscs are not segmented and have an open circulatory system.Phylum: Mollusca - [soft body] snails, bivalves, squid and octopi. Molluscs are a diverse group with over 50,000 described species.nnelids are characterized by having elongate, conspicuously segmented body. Unlike the molluscs with their reduced coelom, annelids have a large coelom that is divided by septa between individual segments. Extreme segmentation believed to be an adaptation for burrowing in soil.