annelid wikipedia - EAS
- From Simple English Wikipedia, the free encyclopedia Annelids are a phylum of invertebrate worms. They are the segmented worms, with over 17,000 known species.
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檢視所有 Wikipediahttps://en.wikipedia.org/wiki/AnnelidThe annelids /ˈænəlɪdz/ , also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and … 查看更多內容
There are over 22,000 living annelid species, ranging in size from microscopic to the Australian giant Gippsland earthworm and Amynthas mekongianus (Cognetti, 1922), which can both grow up to 3 meters (9.8 … 查看更多內容
Segmentation
Most of an annelid's body consists of segments that are practically identical, having the same … 查看更多內容Earthworms make a significant contribution to soil fertility. The rear end of the Palolo worm, a marine polychaete that tunnels through coral, detaches in order to spawn at the surface, and the people of Samoa regard these spawning modules as a delicacy. 查看更多內容
No single feature distinguishes Annelids from other invertebrate phyla, but they have a distinctive combination of features. Their bodies are long, with segments that are divided externally by shallow ring-like constrictions called annuli and internally by septa … 查看更多內容
Charles Darwin's book The Formation of Vegetable Mould Through the Action of Worms (1881) presented the first scientific analysis of earthworms' contributions to soil fertility. … 查看更多內容
Fossil record
Since annelids are soft-bodied, their fossils are rare. Polychaetes' fossil record consists mainly of the jaws that some species had and the mineralized tubes that some secreted. Some Ediacaran fossils such as 查看更多內容CC-BY-SA 授權下的維基百科文字- https://simple.wikipedia.org/wiki/Annelid
網頁Annelids are a phylum of invertebrate worms. They are the segmented worms, with over 17,000 known species . Well known species are earthworms and leeches. Annelids can …
- Kingdom: Animalia
- Superphylum: Lophotrochozoa
Annelid - Wikipedia
https://sco.wikipedia.org/wiki/AnnelidThe annelids (Annelida, frae Lautin anellus, "little ring"), kent as the ringed wirms or segmented wirms an aa, are a lairge invertebrate phylum, wi ower 17,000 modren species includin ragwirms, yirdwirms, an gells.
Wikipedia · CC-BY-SA 授權下的文字- Kinrick: Animalia
- Superphylum: Lophotrochozoa
Category:Annelids - Wikipedia
https://en.wikipedia.org/wiki/Category:Annelids網頁The annelids, collectively called Annelida, are a large phylum of animals, comprising the segmented worms, with about 15 000 modern species including the well-known …
- https://en.wikipedia.org/wiki/Machaeridia_(annelid)
- Only the calcitic sclerites ("armour plates") of these worms tend to be preserved in the fossil record. These are tiny, and usually found disarticulated: articulated specimens reach about a centimeter in length, and are incredibly rare – hence the limited degree of study since their description in 1857. The machaeridians are characterized by having...
- https://en.wikipedia.org/wiki/Glycera_(annelid)
網頁Glycera (annelid) The genus Glycera is a group of polychaetes (bristle worms) commonly known as bloodworms. They are typically found on the bottom of shallow marine waters, …
Phyllodoce (annelid) - Wikipedia
https://en.wikipedia.org/wiki/Phyllodoce_(annelid)網頁Phyllodoce (annelid) Phyllodoce is a genus of polychaete worms, which contains about 200 species. The prostomium bears eyes, two pairs of antennae and a pair of large retractile …
- https://fr.wikipedia.org/wiki/Annelida
網頁Annelida Ver de terre ( Oligochaeta, Lumbricina) Embranchement Annelida Lamarck, 1802 Sous-embranchements de rang inférieur Clitellata Polychaeta Classification …
Eisenia (annelid) - Wikipedia
https://en.wikipedia.org/wiki/Eisenia_(annelid)網頁Eisenia (annelid) Eisenia is a genus of earthworms (annelids), named after Swedish scientist Gustav Eisen . Wikimedia Commons has media related to Eisenia. Wikispecies …
File:Annelid redone w white background.svg - 維基百科，自由的 …
https://zh.wikipedia.org/zh-tw/File:Annelid_redone_w_white_background.svg網頁Annelid redone w white background.svg. English: Diagram of a post-clitellum segment from a typical oligochaete worm showing its various body systems and organs. Based on the …
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