EVERYDAY SCIENCE

Detailed explanation-1: -Parapodia are the locomotory organ of segmented marine worms belonging to the class Polychaeta of phylum Annelida. For example, Nereis virens. Parapodia are dorsoventrally flattened flap-like hollow structures found on the lateral side of the trunk segments and filled with coelom.

Detailed explanation-2: -Aquatic animals of phylum Annelida, like Nereis, possess parapodia.

Detailed explanation-3: -Earthwormss lack the parapodia found in polychaetes. They have bristles on each segment to move and move by peristaltic contraction.

Detailed explanation-4: -These parapodia are predominantly found in the phylum of annelids. These can be either paired, un-jointed with the presence of lateral outgrowths that bear the chaetae. These structures are commonly found in several groups of sea snails and sea slugs, ‘parapodium’ refers to lateral fleshy protrusions Polychaeta.

Detailed explanation-5: -Parapodia are the lateral appendages seen on the surface of the body of some organisms in phylum Annelida as seen in Nereis. It is a marine organism and uses parapodia for swimming. Parapodia are present in each segment in Nereis.