Vocabulary terms for the Lynx Team
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| regeneration | the ability to regrow missing body parts
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| crop | part of the digestive system where food is stored
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| gizzard | part of the digestive system where food is ground up
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| five | number of aortic arch pairs (aka "pairs of hearts") found in an earthworm
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| parasite | an organism that lives in or on another organism, harming it in some way.
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| host | the organism that a parasite lives in or on
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| intestines | the part of the digestive system where nutrients are completely broken down and absorbed
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| free-living | describes an organism that lives on its own
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| mouth | part of the digestive system where food enters
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| castings | scientific name for an earthworm's solid waste
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| peristalsis | rhythmic contractions of the earthworm's digestive system
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| clitellum | the band found near the head of the earthworm. It secretes a foam ring.
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| cocoon | the foam ring that is secreted by the clitellum. Young worms hatch from it.
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| sexual | type of reproduction where two parents are required
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| bilateral symmetry | an organism that can be cut in one way to produce two nearly identical halves
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| California blackworm | example of a free-living worm
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| leech | example of a parasitic worm
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| asexual | type of reproduction in which all the genetic material comes from one parent
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| skin | liquid wastes exit through this tissue
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| air | enters through the earthworm's skin
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| setae | small bristles that help an earthworm move
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| anus | solid waste exits through this opening
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| two | number of parents required for earthworm reproduction
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| pharynx/esophagus | parts of the digestive system that connect the mouth and the crop
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| anterior | in worms, pertaining to the head or forward end of the organism.
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| posterior | in worms, pertaining to the back end of the organism.
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| fertilization | process in which an egg and sperm unite
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