| 词汇 | polychaete |
| 释义 | BETA Examples of polychaetepolychaete isn’t in the Cambridge Dictionary yet. You can help! They include deposit and suspension feeding polychaetes, bivalves, and crustaceans as well as endobenthic predatory polychaetes and nemertines. In the case of the polychaetes, however, the evidence points strongly to such tiny animals as being derived. Changes have propagated through benthic invertebrates, with the macrofauna changing from echinoids and large clams to opportunistic brittle stars and polychaetes. The third reason, which is also a reflection of the remarkable diversity, is the still vexed question of polychaete phylogeny. As they note, however, recent molecular evidence suggests this intriguing group may have nothing to do with the annelids, let alone the polychaetes. This presumably evolved independently of the insect brain, and is a reminder that at least these polychaetes are probably far more sophisticated than generally realized. No moult was observed in the intermediate host, and infective larvae in polychaetes were identical with third-stage larvae in the fish. Flounders may ingest infected polychaetes during the summer and autumn. This diversified filter feeding assemblage is mainly characterised by sponges and anthozoans, while in soft sediments detritus-feeder polychaetes and bivalves dominate. At one level polychaetes have a rather standard bodyplan, but on this has been built a very remarkable diversity of forms. Invertebrates associated with seagrass meadows include polychaete worms, amphipods, isopods, decapods and molluscs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is benthic in nature, preying on shrimps, polychaetes and molluscs, however little else is known of its biology. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Crustaceans, including crabs, prawns, amphipods and copepods, are commonly taken, as are a number of polychaete and annelid worms. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most are carnivorous and feed on cnidarians, sponges, polychaetes and bryozoans. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The adults are free living, while the larvae and the juveniles are living on or inside temporary hosts such as polychaetes and clams. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Juveniles eat more crustaceans, often from among drifting macrophytic algae, while adults feed mainly on molluscs and polychaetes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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