Sunday, March 25, 2007

How Annelids fit and relate to our outside world

Annelids can be found in moist terrestrial and fresh water environments, such as well vegetated soil and ponds. The Oligochaete worms are usually found in mud and rotten leaves. These worms feed by passing soil through their body to create nutrients for bacteria and other worms. Polychaetes (bristle worms) are found in fresh water, and they live by extracting particles from the pond bottom. Leeches can be found in rivers and streams or on the surface of roads after rain. Even though leeches suck blood from their hosts, they can be used as medication to clot blood. The slow moving annelids are easily captured by their predators, such as birds and human.

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