• Thumbnail for Choanocyte
    Pinacocyte     Choanocyte     Lophocyte     Porocyte     Oocyte     Archeocyte     Sclerocyte     Spicule     Water flow Choanocytes (also known as "collar...
    3 KB (349 words) - 21:24, 25 May 2024
  • Thumbnail for Sponge
    with choanocytes, cells with whip-like flagella.: 29  However, a few carnivorous sponges have lost these water flow systems and the choanocytes.: 39 ...
    129 KB (13,202 words) - 07:56, 25 August 2024
  • Thumbnail for Cliona celata
    lack true tissues. They have two cell layers: the pinacoderm and the choanocyte layer. The pinacoderm layer is the epidermal layer that consists of pinacocyte...
    21 KB (2,064 words) - 23:58, 2 August 2024
  • structure. Regardless of body plan or class, the spongocoel is lined with choanocytes, which have flagella that push water through the spongocoel, creating...
    1 KB (186 words) - 10:46, 18 March 2022
  • Thumbnail for Sycon ciliatum
    distinguished from the rather similar Sycon raphanus by the fact that the choanocyte chambers are not fused but are free from each other. Sycon ciliatum is...
    3 KB (183 words) - 07:46, 22 January 2023
  • Thumbnail for Flagellate
    myxogastrids Opisthokonta: most metazoans (male gametes, epithelia and choanocytes), chytrid fungi (zoospores and gametes) Excavata: some acrasids (Pocheina...
    13 KB (1,350 words) - 03:43, 17 June 2024
  • Thumbnail for Leucosolenida
    based on an increasingly complex skeletal system and compartmentalized choanocytes. A few sources (such as the Treatise on Invertebrate Paleontology, 2004)...
    3 KB (297 words) - 17:40, 3 July 2024
  • Thumbnail for Archaeocyte
    amoebocytes as well as other sponge cells including the phylum specific choanocyte. These cells move within the walls of a sponge and form spicules. Tschinkel;...
    2 KB (224 words) - 16:35, 2 August 2024
  • Thumbnail for Eumetazoa
    and some morphological characteristics, like the common presence of choanocytes, now unanimously support a common origin. Traditionally, eumetazoans...
    13 KB (1,211 words) - 18:21, 20 August 2024
  • choanoflagellates, collared flagellates whose cell morphology is similar to the choanocyte cells of certain sponges. Molecular studies place animals in a supergroup...
    6 KB (717 words) - 15:34, 26 August 2024
  • Thumbnail for Demosponge
    Carboniferous, Nevada. Spermatocytes develop from the transformation of choanocytes and oocytes arise from archeocytes. Repeated cleavage of the zygote egg...
    22 KB (2,266 words) - 02:42, 17 June 2024
  • Thumbnail for Callyspongia aculeata
    plankton, with an osculum as the opening which water leaves through, and choanocytes trap food particles. This species is frequently colonized by Umimayanthus...
    9 KB (736 words) - 16:03, 10 August 2024
  • Thumbnail for Gas exchange
    water is subsequently circulated through the sponge by cells called choanocytes which have hair-like structures that move the water through the sponge...
    57 KB (6,623 words) - 14:01, 21 May 2024
  • Thumbnail for The Ancestor's Tale
    temporary colonies from a free-living unicellular stage. Sponges have choanocytes, cells that resemble single-celled choanoflagellates, providing an indication...
    54 KB (984 words) - 06:02, 1 August 2024
  • Thumbnail for Choanosome
    sponge, supported on the choanoskeleton, the structure that contains the choanocytes. Choanoderm Boury-Esnault, Nicole; De Vos, Louis; Donadey, Claude; Vacelet...
    1 KB (91 words) - 21:05, 30 October 2023
  • Thumbnail for Flagellum
    found either in specialized cells of multicellular organisms (e.g., the choanocytes of sponges, or the ciliated epithelia of metazoans), as in ciliates and...
    65 KB (7,151 words) - 19:55, 31 July 2024
  • to the smooth, slightly slimy surface. This sponge has long tubular, choanocyte chambers, which are sometimes branched, and no spicules. The oscula are...
    4 KB (489 words) - 04:29, 23 June 2023
  • choanoderm is a type of cell layer composed of flagellated collar cells, or choanocytes, found in sponges. The sponge body is mostly a connective tissue; the...
    2 KB (181 words) - 03:30, 16 March 2024
  • of early animals? Eocyathispongia: is it an early sponge? Did it have choanocytes? Vernanimalcula guizhouena: is this fossil organism an early bilaterian...
    30 KB (3,189 words) - 00:22, 25 August 2024
  • Thumbnail for Placozoa
    Trichoplax adhaerens evolved by reduction of the collars in the collar cells (choanocytes) of sponges as the hypothesized ancestors of the Placozoa abandoned a...
    56 KB (5,788 words) - 01:17, 20 August 2024
  • Thumbnail for Hexactinellid
    organelles ("organs" within cells) and other substances. Instead of choanocytes, these bridges have further syncytia, known as choanosyncytia, which...
    20 KB (2,304 words) - 18:13, 8 August 2024
  • Thumbnail for Choanoflagellate
    recorded the morphological similarities of choanoflagellates and sponge choanocytes and proposed the possibility of a close relationship as early as 1841...
    42 KB (4,236 words) - 04:36, 26 August 2024
  • entering the cytosol where it would damage actin. After production in the choanocytes, the latrunculin is transferred via the archeocytes to the vulnerable...
    27 KB (2,852 words) - 06:38, 3 June 2024
  • Thumbnail for Contractile vacuole
    in several types of cells in sponges (amoebocytes, pinacocytes, and choanocytes). The number of contractile vacuoles per cell varies, depending on the...
    10 KB (1,304 words) - 12:50, 2 July 2024
  • Thumbnail for Sycon raphanus
    resembles Sycon ciliatum but can be distinguished by the fact that the choanocyte chambers are fused. Sycon raphanus is found along the western fringes...
    3 KB (219 words) - 05:15, 8 March 2021
  • Thumbnail for Ministeria vibrans
    Choanoflagellata. The kinetid structure of Ministeria is similar to that of the choanocytes of the most deep-branching sponges, differing essentially from the kinetid...
    4 KB (417 words) - 16:46, 15 April 2024
  • Thumbnail for Leucettusa
    Australia. Species have a simple tubular body with a large atrium, and choanocyte chambers which are either elongated, spherical or both. The following...
    2 KB (176 words) - 06:47, 9 March 2022
  • Thumbnail for Halisarcidae
    Members of the family are characterised by having long tubular, branched choanocyte chambers; they have no spicules which makes it difficult to determine...
    1 KB (131 words) - 05:34, 6 January 2024
  • discovery of "neuroid" cells specialized in coordination of digestive choanocytes in Spongilla, the origin of neurons in the phylogenetic tree of life...
    22 KB (2,624 words) - 20:58, 28 February 2024
  • Thumbnail for Calcaronea
    regular. In ontogeny the first spicules to be secreted are diactines. Choanocytes are apinucleate. Calcaronea have amphiblastula larvae World Register...
    1,022 bytes (75 words) - 01:21, 28 April 2023