Nematodes

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 * SIVE, HANNAH ||
 * FRIEDMAN, ASHLEY ||
 * SERAFINI, HELEN ||
 * YUAN, JIMMY ||
 * DUBOIS, ISAIAH ||
 * GORDON, RICHARD ||
 * O'ROURKE, JAMES ||

= = **__ Nematodes __** =

__**BASIC STRUCTURE**__
 * Round, un-segmented, colorless, and lacking appendages __worms__
 * structurally simple organisms
 * characterized as a tube within a tube
 * Tange from 0.3 mm to over 8 m

There are over 20,000 classified species of Nematodes. However, scientists estimate there are 500,000 to over 1,000,000 species of Nematodes overall.
==== The two classes of Phyla Nematoda are Adenophorea and Secernentea. Within those two classes, there are the subclasses of Enoplia and Chromadoria under Adenophorea and the subclasses Rhabditia, Spiruria, and Diplogasteria. ====

// Necator americanus- // A parasitic nematode found in the southeastern United States. These intestinal parasites are ommonly known as hookworms.
==== //Meloidogyne incognita// – is a plant parasite that must feed on plant tissue to complete its life cycle. This nematode damages plants by exposing them to other pathogens or harming their internal transport systems. Common targets include carrots and corn.====

__**Reproductive mechanisms:**__
====Once the nematode hits the final phase of its growth it is capable of sexual reproduction. When its the final phase of the nematodes life cycle thats when their genders are established. The males are alot smaller than the females. Once the nematodes reproduce and lay their eggs then the life cycle begins again. The eggs will usually pass from the host's body. Then the eggs will develope to infect another plant, insect, or animal.====

__**Feeding mechanisms:**__
====Nematodes feed on soil, plants, bug larvae, bacteria, algae, and fungi. Some nematodes feed on plant roots by penetrating the cells and sucking out the contents. These nematodes are considered parasitic. This causes great damage to plants.====

=**__Ecological niche:__**=

-Safe to people, pets, earthworms, plants and the enviorment
=__**Unique Facts:**__=
 * ==== Nematodes are known for their bad effects on crops. ====
 * ==== Nematodes are also known for their abundance in fresh water. ====
 * ==== The oldest fossil record of an aquatic-nematode dates back to the upper Precambrian of Australia and Europe. ====
 * ==== Nematodes contribute 1-15% of the zoo benthic biomass in lakes ====

=__﻿____**Habitat:**__=
 * ==== Soil Organisms ====
 * ==== They are ubiquitous ====
 * ==== Diverse soil habitats: cultivated fields, forests, grasslands, deserts, and ocean beaches ====
 * ==== They have adapted to almost every ecosystem ====

=__**Citation:**__=

Burns, Robert. "It's the great root nematode control, Charlie Brown." 22 dec 2010: n. pag. Web. 16 Feb 2011. <[]
====ormsby, david. "Nemotodes remain a major challenge." (2006): n. pag. Web. 16 Feb 2011. < [|http://www.pitchcare.com/magazine/nematodes-remain-a-major-]==== ====**"beneficial nematodes." //king.wsu.edu//. washington state university, 12/06. Web. 16 Feb 2011. [] **==== ===="beneficial nematodes." //beneficialinsects101.com//. 2006, n.d. Web. 16 Feb 2011. []. ==== ====" Nematode Parasite Page." //Nematode / Priapulid//. Seattle University, 4/25/2002. Web. 17 Feb 2011. < []>.==== Soltis, Pam, Soltis, Doug, and Edwards, Christine. 2005. Angiosperms. Flowering Plants. Version 03 June 2005. http://tolweb.org/Angiosperms/20646/2005.06.03 //in// The Tree of Life Web Project, []

De Lay, P. "Phylum Nematoda ." //Nemata//. N.p., 5/10/2010. Web. 17 Feb 2011. [].
====Coish, Douglas J. "Phylum Nematoda (roundworms)." //plymouth.edu//. N.p., n.d. Web. 20 Feb 2011. [|http://oz.plymouth.edu/~lts/invertebrates/Primer/text/nematoda.html].==== ====Shapiro-Ilan, David I. "Nematodes (Rhabditida: Steinernematidae & Heterorhabditidae)." //biocontrol.entomology.cornell.edu//. N.p., n.d. Web. 20 Feb 2011. [].====