Earthworm Body Systems

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Coelomate Worms: Annelids Chapter 13. Phylum Annelida Important Groups – Earthworms – Tube worms – Leeches Habitat – Aquatic: Marine or Freshwater – Terrestrial:

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Presentation transcript:

Earthworm Body Systems Mouth: opening through which worm takes in soil Crop: ________ ______________ Gizzard:______ _______________ Anus:_________ Intestine:__________ _______________________

Phylum Annelida Characteristics of Segmented Worms Type of Symmetry Body description Where they live

Coelom-body cavity {why are they important?} They provide a space in which internal organs can be suspended so that they are not pressed on by muscles and twisted out of shape by body movements. Body cavities also allow room for internal organs to develop and expand (ovaries-eggs) Contain fluids that may be involved with internal transport, or the carrying of food, wastes, and other materials from one body part to another.

Value of Segmented Worms Ways segmented worms are helpful 1. 2. 3. 4.

Out- What does it mean when I say “that will open up a can of worms”?