Tuesday, March 17, 2015


Worms vary in dimension from little to over 1 metre (3.3 feet) in length for marine polychaete worms (bristle worms), 6.7 metres (22 feet) for the African giant earthworm, Microchaetus, and 55 metres (180 ft) for the marine nemertean worm (bootlace worm), Lineus longissimus. Free-living worm varieties could live on land, in aquatic or freshwater setups, or burrow.

In biology, "worm" refers to an obsolete taxon (vermes) used by Carolus Linnaeus and also Jean-Baptiste Lamarck for all non-arthropod invertebrate pets, and originates from the Old English word wyrm. The majority of dog and cats called "worms" are invertebrates, yet the term is likewise made use of for the amphibian caecilians and also the slow worm Anguis, a legless burrowing reptile. Invertebrate pet dogs generally called "worms" consist of annelids (earthworms), nematodes (roundworms), platyhelminthes (flatworms), marine polychaete worms (bristle worms), marine nemertean worms ("bootlace worms"), aquatic Chaetognatha (arrowhead worms), priapulid worms, and insect larvae such as eats and maggots.

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