WebIt creates a water current through its tube by writhing about inside to draw particles through the net. Periodically it rolls the net up and swallows it before spinning another. When the availability of suitably-sized food particles is low it emerges from its burrow and hunts for small invertebrates, seizing them with its strong jaws. WebExamine a rag worm crawling in sand and a close-up of its gills. rag worm, also called clam worm (genus Nereis), any of a group of mostly marine or shore worms of the class …

Hediste diversicolor - Wikipedia

WebOne to two eggs usually are laid each season, though if a clutch is lost, the pair generally re-nests. Both parents share incubation duties, which last for around 21 days. The chicks are … humanity have or has

Phylum Annelida - austincc.edu

WebTo feed, it uses a proboscis, which has two hooks at the end, to grasp prey and draw it into its mouth. Clam worms are an important food source for bottom-feeding fish and crustaceans, though they can protect themselves by secreting a mucus substance that hardens to form a sheath around them. [3] WebNereis catches its prey by turning its pharynx inside out which allows the jaws in front to catch the prey. A distinct stomach is absent in Nereis. Epithelial lining of mid-gut contains … WebThey occur as parasites in animals and plants or as free-living forms in soil, fresh water, marine environments, and even such unusual places as vinegar, beer malts, and water-filled cracks deep within Earth’s crust. humanity has declined full series