Which of the following is a polychaete animal?
polychaete, any worm of the class Polychaeta (phylum Annelida). About 8,000 living species are known. Polychaetes, which include rag worms, lugworms, bloodworms, sea mice, and others, are marine worms notable for well-defined segmentation of the body.
What is the purpose of the feather duster worm?
Species Overview Feather Dusters are segmented worms related the notorious bristleworms that plague some aquarists. Unlike bristleworms, Feather Dusters have a feather-like “crown” which they use to filter-feed (catch small food items like plankton from the water column).
Is polychaete a parasite?
They may be, but rarely, found in freshwater and terrestrial (humid), or parasitic. The sex of most polychaetes are separate. The gametes produced in a few specialized segments are shed into the coelom and leave the body through the nephridia.
Are all polychaetes Marine?
The Polychaeta /ˌpɒlɪˈkiːtə/, also known as the bristle worms or polychaetes, are a paraphyletic class of annelid worms, generally marine. Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin.
What do you mean by polychaete?
polychaete. / (ˈpɒlɪˌkiːt) / noun. any marine annelid worm of the class Polychaeta, having a distinct head and paired fleshy appendages (parapodia) that bear bristles (chaetae or setae) and are used in swimming: includes the lugworms, ragworms, and sea mice.
How do feather duster worms get oxygen?
How do feather duster worms get oxygen? They take in oxygen and give off carbon dioxide through their moist skin.
Do polychaetes live in freshwater?
Polychaeta is a commonly encountered group of annelids (segmented worms) best represented in the marine environment, although several species are present in freshwater and a few are known from moist soil on land.