Biology 11 . Kingdom Animalia : Phylum Nematoda : The Roundworms. Phylum Nematoda Objectives. Advances over Platyhelminthes Body plan and body systems 2 broad types and their example animals Parasitic worms (enter, live, hosts, effects). The Pseudocoelomates.
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Characteristics and Advances
1. Evolution of the anus allows for a complete digestive system - tube within a tube body plan
2. A pseudocoelom between mesoderm and endoderm
A. Free living nematodes
A Soil Nematode
B. Parasitic Nematodes
Some of the worst worm parasites are members of this phylum
1. Ascaris sp. the Intestinal Roundworm
3. Pinworm (Enterobius sp.)
5. Filarial Worm
6. The Guinea Stick Worm (Dracunculus sp.)