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Ch 11 Invertebrates

All these questions are from the chapter.

QuestionAnswer
The vase shaped body plan of a cnidarian Polyp
The bowl shaped body plan of a cnidarian Medusa
Worms have what type of symmetry? Bilateral
What two types of flatworms? Parasitic and free-living
What is an organism that attaches itself to a host to get food? A parasite
What is the system that makes roundworms differ from cnidarians and flatworms? The digestive system
Is the digestive system of a roundworm one way or multiple way systems? One way.
What worm is made up of linked sections? Earthworms
What type of circulatory system do segmented worms have, open or closed? Closed
What allows mollusks to obtain oxygen? Gills
What type of symmetry do mollusks have? Bilateral
What are the 3 types of mollusks? Gastropods, Bivalves, and Cephalopods
What is the flexible organ with tine teeth inside a gastropod called? A radula
What is the outer structure of an arthropod? It's waxy and waterproof. Exoskeleton
What is the process that an animal's body undergoes dramatic changes in form during its lifetime called? Metamorphosis
What is the hind section of an arachnid called? The abdomen
What type of symmetry do echinoderms have? Radial
What structure helps echinoderms move? Tube feet
What is the system in the echinoderm that helps it move? Water Vascular System
Created by: leanosabagail
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