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Worm Vocabulary

Name: ______Answer Key___________________
Date: ____________________
Period: ________
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Across
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the main body cavity in most animals and is positioned inside the body to surround and contain the digestive tract and other organs.
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each of a number of paired muscular bristle-bearing appendages used in locomotion, sensation, or respiration.
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nearer the front, especially situated in the front of the body or nearer to the head.
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a structure containing a number of nerve cell bodies
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an animal in which a parasite or commensal worm lives. verb
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an invertebrate of the phylum; a flatworm.
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part of the worm's digestive system; found on the mid ventral side of a flatworm
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an exoskeleton that maintains its form due to the pressure of fluid inside the skeleton.
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on, or relating to the underside of an animal; abdominal.
Down
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small benthic invertebrates that live in both marine and fresh water environments.
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any of a number of different bristle- or hair-like structures on a worms body
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A large phylum of worms with slender, unsegmented, cylindrical bodies, including the roundworms, threadworms, and eelworms.
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around a central axis, as in a starfish
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nearer the rear or hind end, especially of the body or a part of it
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the property of being divisible into halves on either side of a unique plane.
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an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense
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development of a head by the concentration of feeding and sensory organs and nervous tissue at the anterior end
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on, or relating to the upper side or back of an animal.