Cnidarians
Animal Characteristics
Mollusks
Fish
Segmented Worms
100
What is a system of nerve cells that carries impulses?
Nerve net
100
What is how the body parts of an animal are arranged?
Symmetry
100
Where are a mollusk’s organs located?
Visceral mass
100
What are fish with skeletons made of bones?
Bony fish
100
What are segmented worms with bodies divided into segments?
Annelids
200
What are armlike structures that have stinging cells?
Tentacles
200
What carries messages to all parts of the body?
Spine/spinal cord
200
What s a tongue-like organ with rows of teeth used to scrape and tear food?
Radula
200
What are fish with one lung and gills?
Lung fish
200
What are bristle-like structures on the outside of each body segment that help segmented worms move?
Setae
300
What is the body type that is vase-shaped?
Polyp
300
What are animals that have body parts arranged in a circle around a center point?
Radial symmetry
300
What are organs that exchange carbon dioxide for oxygen in the water?
Gills
300
What is a fanlike structure used for steering, balancing and movement?
Fin
300
What type of circulatory system do earthworms have?
Closed
400
What are capsules with coiled triggerlike structures?
Stinging cells
400
What is any marking or coloring that helps an animal hide from other animals?
Camouflage
400
What type of mollusks have a closed circulatory system?
Cephalopods
400
What is a shallow, canal-like structure that extends along the length of the fish’s body and filled with sensory organs?
Lateral line system
400
What is a muscular digestive system structure in which earthworms grind soil and organic matter?
Gizzard
500
Which type of cnidarian reproduces sexually?
Medusa
500
What are the bones of the spine called?
Vertebrae
500
What are the 3 groups of mollusks?
Bivalve, cephalopod, gastropod
500
What are fish with fins made of long, thin bones covered with skin?
Ray-finned fish
500
How do earthworms exchange oxygen and carbon dioxide with its environment?
Through their skin
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