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Cards In This Set
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What does the name "annelida" mean?
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Resembling little rings
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What is another terms for annelid segments?
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Somites
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How many species of annelids are there?
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Over 4,500 species
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What class in the phylum Annelida is the earthworm in?
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Oligochaeta
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What does the name of class mean?
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"Not many spines or bristles"
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How many pairs of bristles does the earthworm have on each segment of its body?
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4 PAIRS
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What are the bristles in the earthworm called?
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Setae
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What do earthworms use their setae for?
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Mvoing through and in out of its burrow
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What is the usual rate of movement of the earthworm?
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Length of its own body length in about a minute
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What is the scientific name of the earthworm used in the model?
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Lumbricus Terrestris
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What is the longest that this species of earth worm usually grows?
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30 centimeters (11.5 inches)
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What type of symmetry does the earthworm have?
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Bilateral symmetry
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What is a coelom?
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True Body Cavity
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What is the alimentry cavity?
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Hollow Digestive Tube
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What is the space between the outer surface of the ailmentary canal and the inner surface of the body wall called?
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Coelem
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