| pseudocoelomate | | "wormlike" |
| complete | | lost by parasites |
| protonephridia | | type of feeding for turbellarian |
| nemertea | | flatworm that lacks coelomic space |
| monogenea | | type of reproduction nematodes do NOT undergo |
| nematodes | | type of nerve cords connected like a ladder |
| longitudinal | | type of symmetry in platyhelminthes |
| scolex | | phylum of ribbon worms |
| STYLET | | order of turbellaria with multi-branched gut |
| asexual | | turbellarian sexual hermaphroditic reproduction |
| bilateral | | lacks a true coelom |
| ganglion | | modified pharynx; used to ingest prey |
| primary | | "head" in cestodes |
| trophic | | tract where cestodes live |
| hooks | | surrounds the proboscis in nemertea |
| vermiform | | aggregation of nervous tissue |
| mesenchyme | | tapeworm class |
| acoelomate | | order of trematodes that live only as ectoparasites |
| turbellaria | | type of characteristic carried over from embryonic development to adulthood |
| rhabdocoela | | what is provided for cilia to work against |
| tegument | | phylum of roundworms with no circular muscles |
| cestodes | | adaptations for staying put |
| rhynchocoel | | nose-like trunk used for feeding in nemertea |
| digena | | type of host where sexual reproduction takes place |
| polycladida | | tissue level of platyhelminthes and nematodes |
| penis fencing | | excretory system uses... |
| closed | | embryonic structure that is retained by the adult |
| proglottids | | provided for muscle to work against |
| mucous | | free living flatworms |
| carnivorous | | simple gut order of turbellaria |
| paedomorphic | | tough outer covering produced by ectoderm in trematodes |
| eyes | | repeating units in adult tapeworms; future tapeworms |
| proboscis | | type of transmission where infection is done through feeding |
| digestive | | order of trematodes that have multiple hosts |
| blastocoel | | digestive system of nematodes is... |
| triploblastic | | type of circulatory system in nemertea |