1. The Avicularium type of zooid has a small body and a rudimentary polypide; the operculum, however, is proportionally larger, has strong adductor (closing) muscles, and has become, in effect, a jaw. Avicularia are found among normal zooids but usually are smaller and attached to normal zooids, as in the gymnolaemate Schizoporella.

2. Avicularium The Avicularium in cheilostome bryozoans is a modified, non-feeding zooid. The operculum, which normally closes the orifice when the zooids tentacles are retracted, has been modified to become a mandible

3. Bryozoan colonies grow by budding from the adult zooids

4. The shape of the Avicularian zooid can be identical

5. Proximal Avicularium broadly club-shaped, recumbent on the frontal surface of the central zooid, mandible short, lightly triangular and hooked, and oriented perpendicular to the frontal plane of the zooid

6. Other Ascidians may form colonies with many individual animals called zooids

7. The Bryozoan zooid is a complex animal with cell layers, tissues and organs

8. Colony showing ovicelled and non-ovicelled zooids and broad-based Avicularian column with spinose extensions

9. 5, close-up including autozooids, an ovicellate zooid and an adventitious Avicularium (200 µm).

10. Bryozoans are simultaneous hermaphrodites, with individual zooids functioning first as males and then as females

11. All of them are simple and aquatic, and most of them live in the sea.Some are colonial, composed of zooids which may be clones.Cnidarian zooids may take the form of polyps or medusae at different phases of their life.

12. Bryozoan colonies can get very large--containing about two million zooids and stretching a foot or more across

13. Bryozoans are colonies of zooids that function together to outcompete other creatures for a similar food source

14. Variety of Avicularian morphologies had been described previous-ly, the general morphological similarity of non-Avicularian zooids

15. A Bryozoan colony consists of microscopic individuals, or zooids, which are enclosed in a calcareous, chitinous, or gelatinous cell (cystidium)

16. In lateral zooids the Avicularium is recumbent and directed toward the basal area, visible only in lateral or basal view.

17. Avicularium In some polymorphic (see POLYMORPHISM) colonial Bryozoa, a zooid shaped like the head of a bird. Source for information on Avicularium: A Dictionary of Zoology dictionary.

18. (noun) 3) has very constant anatomical characters, differing in some important respects from the Actinian zooid, which has been taken as a type.

19. Avicularium (plural avicularia) ( biology ) A modified zooid , in some colonial bryozoans , in the form of a beak , that prevents other organisms from settling on the colony Latin [ edit ]

20. Some of the zooids in Bluebottles are responsible for the float on top which is a single individual and supports the rest of the colony

21. 5, close-up of ovicellate and non-ovicellate zooids showing the robust oral spines and interzooidal Avicularium with intramural bud (200 µm)

22. Avicularium definitions (biology) A modified zooid, in some colonial bryozoans, in the form of a beak, that prevents other organisms from settling on the colony.

23. In Actinians the epithelio-muscular cells of the endoderm are crowded with yellow spherical bodies, which are unicellular plants or Algae, living symbiotically in the tissues of the zooid

24. In freshwater Bryozoa, development is within an embryo sac that is an invagination of the body wall of the stationary trunk section of the zooid, bulging into the coelom

25. Social Ascidian definition is - any of various Ascidians that reproduce by budding like the ordinary compound Ascidians but that produce zooids each surrounded by a separate test though remaining connected by stolons.

26. Bryozoan that grows on kelp and other seaweeds • Colonies tend to have irregular edges, o˜en star-shaped or branching • Zooids are oval and do not have the regular, brick-like appearance of M

27. Like other species of Bryozoans (also known as Ectoprocta or commonly as moss animals), the individual microscopic aquatic invertebrates (called a zooid) live directly on submerged surfaces in a colony (Ricciardi and Reiswig 1994, Wood 2010).

28. Is the commonest intertidal species in NE Brazil; it is distinguished from other Brazilian Reptadeonella in having a nodular peristome, large subperistomial areolar pore and zooids with one or two frontal pores frequently replaced by a suboral Avicularium and crescentic spiramen.

29. Bryozoa - marine or freshwater animals that form colonies of zooids phylum Bryozoa, polyzoa animal kingdom, Animalia, kingdom Animalia - taxonomic kingdom comprising all living or extinct animals Bryozoan, moss animal, polyzoan, sea mat, sea moss - sessile aquatic animal forming mossy colonies of small polyps each having a …

30. Bryozoa definition is - a small phylum of aquatic animals that reproduce by budding, that usually form branching, flat, or mosslike colonies permanently attached on stones or seaweeds and enclosed by an external cuticle soft and gelatinous or rigid and chitinous or calcareous, and that consist of complex zooids each having an alimentary canal with distinct mouth and anus surrounded by a true

31. A satisfactory explanation of this phenomenon may be that the neonastic stage characterising the peripheral growing tip of the colony with its incompletely calcified frontal walls of the zooids dominated the whole colony, induced by a stop of the calcification of the cryptocyst, with the exception of the ancestrula, the result of which being a secondary membranimorph stage, characteristic for the Malacostega.