EVERYDAY SCIENCE

Detailed explanation-1: -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-2: -annelid, phylum name Annelida, also called segmented worm, any member of a phylum of invertebrate animals that are characterized by the possession of a body cavity (or coelom), movable bristles (or setae), and a body divided into segments by transverse rings, or annulations, from which they take their name.

Detailed explanation-3: -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-4: -Segmented worms make up the Phylum Annelida. The phylum includes earthworms and their relatives, leeches, and a large number of mostly marine worms known as polychaetes.

Detailed explanation-5: -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.