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10 Cards in this Set

  • Front
  • Back
Phylum
Annelida
Purpose of studying and dissecting an earthworm
help understand the bodies of higher level organisms and to learn the structures and functions of segmented worms
Hermaphrodite definition
any animal that can produce both sperm and eggs
What do earthworms eat?
Soil
How do earthworms help the environment
fertilize the soil
create passage ways for plant roots
improve the soil's ability to hold water
What is a coelom/purpose
a fluid filled cavity between the intestines and the body wall

helps the worm breath
Dorsal vs. Ventral
dorsal side is darker and rounder
What are the setae used for
anchor the worm into the soil while it moves forward
Where is the clitellum located/purpose
closer to the anterior end than the posterior end

creates a capsule for eggs and sperm
Anterior vs. Posterior
anterior end is rounder than the posterior end