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ANNELIDA - Seventh Phylum
62777
ANNELIDA - Seventh Phylum
http://ola4.aacc.edu/hggemignani/page085to87.htm
Segmented worms - metameric organization (one compartment after another somites segments organized about the same). Annelids are very complex animals. First animal with a true coelom which runs the entire length of the body. Triploblastic; bilateral symmetry.
Biology > Biota > Fauna > Annelida
digestive system nerve cord circulatory nephridia ventral intestine thin-walled structures pharynx larval stage
Jan 1, 2003
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Other links at Biology > Biota > Fauna > Annelida
Fluid in coelom provides hydrostatic pressure for hydrostatic skeleton . Epidermis secretes cuticle.
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Analytical Chemistry. Classified links of the Chemistry Biology Information Center of ETH Zürich.
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Annelid worms, brought to you by Biological Sciences at the University of Paisley.
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5. Annelida
Comprehensive information on these organisms and their phylogenetic relationships from the Tree of Life Web Project, with photographs of several species.
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Phylum: Annelida (segmented worms) - Iziko Museums of Cape Town, South African
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These are the most highly developed helminths, having segmented bodies, a circulatory system, nephridia (part of a primitive excretory system, but still much more advanced than the flame cells of, for example, the Platyhelminthes), a highly developed digestive system, and a primitive brain.
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Annelida (segmented worms) Path Digital Universe Home > Life on Earth > Tree of Life > Nucleated Life (Eukaryota) > Animals > Annelida (segmented worms) Dioramas /content/2728/Dio.jpg Children Links
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10. UCSC Annelida
Anatomical illustrations of segmented worms from the University of California at Santa Cruz.
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