NEET BIOLOGY

Detailed explanation-1: -The annelids /ˈænəlɪdz/ (Annelida /əˈnɛlɪdə/, from Latin anellus, “little ring"), also known as the segmented worms, are a large phylum, with over 22, 000 extant species including ragworms, earthworms, and leeches.

Detailed explanation-2: -What are Earthworms? The term Earthworm refers to a specific group of invertebrates within the taxonomic phylum Annelida.

Detailed explanation-3: -Segmented Worms: Phylum Annelida. The worms in the phylum Annelida (from the Latin root word annelus meaning ring) typically have complex segmented bodies (Fig. 3.43). The body of an annelid is divided into repeating sections called segments with many internal organs repeated in each segment.

Detailed explanation-4: -Phylum Annelida is a very broad phylum belonging to the kingdom Animalia. The Annelids are found in aquatic as well as terrestrial environments. These are bilaterally symmetrical invertebrate organisms. Their segmented body distinguishes them from any other organism.

Detailed explanation-5: -The annelids include earthworms, polychaete worms, and leeches. All members of the group are to some extent segmented, in other words, made up of segments that are formed by subdivisions that partially transect the body cavity. Segmentation is also called metamerism.