Parapodia. The term parapodium refers to lateral protrusions or outgrowths from the body of invertebrates. Parapodia are paired, unjointed lateral outgrowths that bear the chaetae. They are most commonly found in annelids. Nephridia. The nephridium is a pair of invertebrate organs that perform a function comparable to that of vertebrate kidneys ...

Parapodia: Parapodia are the locomotory lateral appendages that help in the movement of annelids. In the marine gastropods, these structures act as a foot that bears the lateral projections. These are present mostly in the animals that come under the class Polychaeta in the phylum Annelida. These include sand worms, tube worms, and clam worms.

Parapodia help in crawling and swimming. Suggest Corrections. 8. Similar questions. Q. In Nereis ...

It can swim due to its parapodia. The Nereida family includes the Polychaeta worm genus Nereis. For locomotion, they have setae and parapodia. Every segment of the body, with the exception of the peristomium and the anal segment, has a parapodium on either side, which is a flat, fleshy, hollow, vertical flap-like protrusion.

The tentacles, parapodia, and setae are not present. The animals are monoecious. The body is dorsoventrally or cylindrically flattened. They have an anterior and posterior sucker on the ventral side. The organisms lay eggs in cocoons. There is no …

5)Function of parapodia in Annelida The fleshy protrusions on the sides of some marine gastropods are also called parapodia. They are particularly well-developed in sea butterflies. Some sea hares use their parapodia to swim. Parapodia can even be used for respiration (similar to gills) or for locomotion. 6)which type of Skeleton present in ...

Read the following statements and select the incorrect ones.i Circulatory system in arthropods is of closed type.ii Parapodia in annelids help in swimming.iii Phylum Mollusca is the second largest animal phylum.iv Aschelminthes are dioecious.

Fill up the blank spaces appropriately. Phylum/ ClassExcretory OrganCirculatoryOrganRespiratory OrganArthropoda Lungs/ Gills/ Tracheal System NephridiaClosedSkin ...

Obelia shows metagenesis i.e. alternation of generations which may be defined as a phenomenon in which diploid asexual phase alternates with haploid sexual phase. Lemur has a thecodont teeth i.e. the teeth are embedded in the sockets of the jaw. Parapodia is a characteristic feature phylum Annelida but sea urchins belong to the phylum ...

NCERT Solutions for Class 11 Biology Chapter 4 Animal Kingdom Solution The presence of Notocard and paired pharyngeal gill slits is characteristic of the phylum chordate.