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invertebrates names

QuestionAnswer
What animal has no tissues? Sponges
What group have a backbone? Chordata
What are Echinoderms? seat stars
What are Cnidarians? radial symmetry, two true tissues, two body forms
What are the two true body forms of the Cnidarians? polyp (hydras) and medusa (jellies)
What are cnidocytes? unique cells that function in defense and catching prey
What are nematocysts? specialized organs that eject a stinging thread
What are Flatworms? bilateral animals with no body cavity
What animals are the simplest bilateral animals? Flatworms
Flatworms are divided into what two lineages? Catenulida and Rhabditophora
What are Molluscas? snails, slugs, oysters and clams
What are the four classes of molluscs? Polyplacophora, Gastropoda, Bivalvia, and Cephalopoda
What are Annelids? segmented worms
What kind of circulatory system do Annelids have? closed circulatory system
What are the two major clades of Annelids? errantians and sedentarians
What are Nematodes? roundworms
What group has a protective cuticle? Nematodes
What are Arthropods? crayfish, crabs, insects
What group has a sheds its exoskeleton?
Created by: mac271
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