a aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az

Перевод: annelid

[существительное]
кольчатый червь

Тезаурус:

1. b , Undescribed worm from Middle Cambrian (Burgess Shale), British Columbia, possibly representing an early annelid; 3.2x. c , Articulated halkieriid from the Lower Cambrian (Buen Formation) of the Sirius Passet fauna, north Greenland; 1.5x.
2. There is, however, every reason to believe that the insect head arose by the coalescence of a number of body segments and a non-segmental anteriorly-placed acron homologous with the Annelid prostomium.
3. Molluscs may have evolved from a flatworm-like ancestor independently of the annelids, but molecular evidence supports the possibility of an annelid link.
4. For instance, molecular evidence suggests a close alliance between molluscs and annelids, but it is hard to imagine how an animal like the most primitive known annelid (an archiannelid?) was transformed into a primitive mollusc (a chiton?).
5. They were probably derived from some sort of segmented worm (annelid) - a few scientists adopt the view that different arthropods may have come from different and separate worms, independently, which became "arthropodized" by acquiring an external skeleton.
6. The Arrowcrab is notable in one respect in that as a predator of annelid worms it will prey upon the bristleworms ( Hermodice carnuculata ) that sometimes plague aquariums.
7. Annelid worms are made up of body segments, each of which contain reproductive cells.
8. In the Burgess Shale there is an undescribed worm (Fig. 4 b ) with prominent lateral extensions that may be close to the basal annelid stock.