| A | B |
|---|
| Aortic arches | earthworm "hearts"; regulate blood pressure |
| Auricles | Ears |
| Bilateral | Left and right halves that are mirror images |
| Clitellum | Band-shaped enlargement on earthworm's body; used during mating |
| Clonorchis | scientific name of chinese liver fluke. |
| Closed | type of circulatory system in which the blood is contained in vessels throughout body |
| Coelom | true body cavity; completely surrounded by mesoderm |
| Cuticle | Protects parasites from host's digestive enzymes. |
| Diffusion | Process used to obtain oxygen in most of the organisms studied so far |
| Flame cells | Get rid of extra water in flatworms; protonephrida |
| Gizzard | Grinds up an earthworm's food. |
| Head | Cephalization; means nerve tissue is concentrated at one end of an animal. |
| Gastrovascular | digestive system that also transports nutrients to all parts of the body |
| Ladder | shape of flatworm nervous system |
| Liver | home |
| Metamerism | Body divided into linear segments. |
| Mollusca | means soft-bodied |
| Monoecious | Male and female in the same animal; hermaphroditic |
| Nephridia | kidneys |
| Organ | level of organization; found first in flatworms |
| Ovary | organ that produces eggs |
| Parasite | Animal which lives inside another animal. |
| Pharynx | Biology word for throat. |
| Proglottids | Ribbon-like chain of body units in a tapeworm |
| Pseudocoel | Body cavity of a roundworm. |
| Seminal receptacle | Receives sperm |
| Regeneration | ability to regrow parts |
| Reproduction | major function of proglottids |
| Respiratory | system first found in molluscs |
| Scolex | Head |
| Segments | linear parts of an earthworm's body |
| Septa | Partitions inside an earthworm's body. |
| Suckers | method of attachment in Clonorchis |
| Raw | meat which may be the source of tapeworms and roundworms |
| Testes | produce sperm |
| Trichinella | worm that comes from undercooked pork; produces cysts in muscles |
| Typhlosole | Folding of the intestine in earthworms; increases surface area |
| Seminal vesicle | stores sperm |
| Wucheria | Roundworm which obstructs and blocks lymph vessels. |
| Acoelomate | no body cavity |
| Triploblastic | three body layers; first found in Platyhelminthes |
| Platyhelminthes | phylum containing flatworms |
| Schistosoma | genus name of blood flukes |
| Open | type of circulatory system in which blood flows out of vessels into cavities |
| Setae | bristles found in Annelids |
| Nematods | roundworms |
| Annelida | segmented worms |
| Ventral | belly |
| Rotifer | small organism; only live specimen in lab |
| Hydrostatic | type of "skeleton" in earthworms; uses fluid |
| Visceral mass | part of a mollusc containing organs |
