Nematodes are the most diverse phylum pseudocoelomates, and one of the most diverse of animals. There are over 80,000 different types of Nematodes and around 15,000 look to be parasitic. A Nematode is a type of round worm. Round worms are bilaterally symetric, triploblastic prostomes and a complete digestive system. They dont have a circulatory or resperatory system. They breathe through a function called diffusion.
which have four juvenile stages. An alternate form of the fourth stage juvenile, often called the "preadult" stage, is a unique resistant or survival stage in which the stylet is reduced and nonfunctional or absent and therefore does not feed. the preadults molt rapidly and begin feeding when placed near a plant root, perhaps due to some chemical compound released from the root. They are free-living species.
Nematodes help and destroy plants. There is one type that attacks cutworms from plants and then another type that attacks the plants. Nematodes are pretty cool. There are a lot of different species so they will probably find some more soon.
Monday, March 30, 2009
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