Syncitial

Rhabdite

Flame cell

Proglottid

Scolex

Proboscis

Stylet

Parthenogenesis

Metamerism

Setae

Crop

Gizzard

Nephridia

Closed circulatory system

Open circulatory system

Trochophore

Viviparous

Mantle

Radula

Gills

Hemocoel

Hemolymph

Hemocyanin

Spermatophore

Semelparous

Malphighian tubule

Chitin

Molting

Tracheae

Book Lung

Complete Metamorphosis

Incomplete Metamorphosis

Chelicerae

Pedipalps

Cephalothorax

Ovigers

Carapace

Spinnerets

Capitulum

Biramous

Uniramous

Ovipositor

Be able to compare/contrast the general characteristics of acoelomate worms, pseudocoelomate worms, coelomate worms, molluscs, and arthropods. This includes body symmetry, segmentation, body plan, body organization, digestion, reproduction, circulatory, respiratory, etc.

Know the major differences among the Acoelomate worms: Dugesia, Schistosoma, Liver Flukes, Tapeworms, and Ribbon Worms. Know the following nematodes (pseudocoelomate worms): Ascaris, Trichinella, Pinworm, Hookworm. Know the differences among the Coelomate worms: polychaete worms, oligochaete worms, leeches, Onychophorans.

Know how to distinguish the different molluscs: chitons, gastropods, scaphopods, bivalves, and cephalopods. Know the differences among Nautilus, Cuttlefish, Squid, and Octopus.

Know how to distinguish the different arthropods: trilobites, chelicerates, crustaceans, uniramians. Know the differences among the following chelicerates: spiders, harvestmen, ticks/mites, and scorpions. Know the differences among the following crustaceans: branchiopods, copepods, barnacles, isopods, and decapods. Know the differences among the following uniramians: millipedes, centipedes, insects.