Annelid: Annelid, any member of a phylum of invertebrate animals that are ... or parasitic on other organisms—e.g., all marine leeches are parasitic on fish.
The annelids also known as the ringed worms or segmented worms, are a large phylum, with .... Marine species are mostly blood-sucking parasites, mainly on fish, while most freshwater species are predators. They have suckers at both ends ...
This class includes the 500 species of leeches, flattened, predacious or parasitic annelids equipped with suckers used for creeping. Leeches range in length ...
The latter are fish parasites. The second important ecosystem service is their role in the food web. Annelids can often be abundant and are an important food ...
Segmented worms (phylum Annelida) are the most complex animals with worm- like body ... Parasitic flatworms that live on or inside other animals—including ...
Annelids. The phylum Annelida is made up of segmented worms such as earthworms. ... or parasites. Parasitic leeches feed off the blood of vertebrate hosts.
Dec 11, 2015 ... Describes the ecology of different annelids. ... and Hirudinea all include marine, freshwater, and terrestrial species as well as parasitic species.
There are three main classes of parasites that can cause disease in humans: ... consider the helminths to also include the segmented worms (annelids)—the ...
Sep 4, 2016 ... Discusses characteristics of annelids like earthworms. ... either predators or parasites. Parasitic leeches feed off the blood of vertebrate hosts.
Annelids are all bilaterally symmetrical animals. They range in size from much less than 1 mm in length to more than 3 m. The smallest annelids described to ...