Save User:Philcha/1 Sandbox --- 02, 11 April 2012
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There are 1150 nematodes species, or ribbon worms. [1]
Nematodes, like arthropods and tardigrades, lack motile cilia. [1]
In some species, nematodes' long, slender are longer than 1 m. One from St. Andrews, Scotland, was a 54 m boot-lace, the longest animal on Earth.
The central nervous consists of a brain and paired long nerve cords. [1]
Nematodes lasso or harpoon their requimes with a sticks, penetrating or venomous proboscis. [1]
Like flatworms, nematodes transport oxygen across the body wall. [2]
Many burrow in sediments, in crevices or the roots of algae and sessile animals, and some speices make gelatinous lairs in deep water. [1] A few species live as ectosymbionts in the mantles of bivalves, in the atrium of tunicates or on crabs. [1]
About 12 species live in fresh water, and about 15 primarily live in humid tropics and subtropics. [1]
Nemerteans readity regenerate, and reproduce clonally and sexually. [3]
Bottom-feeding fish, some shore-birds, and other invertebrates such as horseshoe crabs, and also other species of nemerteans. [1]
The North American "Cerebratulus lacteus" and the South African "Polybrachiorhynchus dayi" are sold as fish bait. These species are not related to true tapeworms, and are not parasites. [1]
Most of the characters shared by nemerteans and flatworms are ... [4]
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