SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Polychaeta
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Oligochaeta
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Hirudinida
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Annelida
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Detailed explanation-1: -oligochaete, any worm of the subclass Oligochaeta (class Clitellata, phylum Annelida ). About 3, 500 living species are known, the most familiar of which is the earthworm (q.v.), Lumbricus terrestris .
Detailed explanation-2: -The Oligochaeta includes the well-known earthworms and many small species of freshwater worms. They are part of the Phylum Annelida; the segmented worms, and if magnified the body is visibly segmented. Oligochaetes are also distinguished by the presence of hair-like or bristle-like setae (or chetae) along the body.
Detailed explanation-3: -Earthworms are members of phylum Annelida and class Oligochaeta, living in different strata of soil. More than 4400 species of earthworms are found worldwide [74].