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References A adhesive organ 1. An organ present at the anterior end of ascidian larvae, serving to attach the larva to the substrate during its metamorphosis. It is usually made of three papillae. 2. The individual papillae. atrium atrial pore atrial siphon Also excurrent siphon or exhalant siphon. Opening through which water exits the branchial basket in ascidians. B blastozooid Sexual ...
Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. [2] Ascidians are characterized by a tough outer test or "tunic" made of the polysaccharide cellulose.
Clavelina moluccensis, the bluebell tunicate Botrylloides violaceus showing oral tentacles at openings of buccal siphons. About 3,000 species of tunicate exist in the world's oceans, living mostly in shallow water. The most numerous group is the ascidians; fewer than 100 species of these are found at depths greater than 200 m (660 ft). [12]
Sponge loop hypothesis. Steps of the sponge loop pathway: (1) corals and algae release exudates as dissolved organic matter (DOM), (2) sponges take up DOM, (3) sponges release detrital particulate organic matter (POM), (4) sponge detritus (POM) is taken up by sponge-associated and free-living detritivores. [61] [63] [75] The sponge holobiont.
Botryllus schlosseri is a colonial ascidian tunicate. It is commonly known as the star tunicate, [2] but it also has several other common names, including star ascidian and golden star tunicate. [3] [4] Colonies grow on slow-moving, submerged objects, plants, and animals in nearshore saltwater environments.
Sponge (tool), a porous material used for cleaning impervious surfaces; Metal sponges, a similar porous material; Sponge and dough, a breadmaking method; Sponge cake, a type of cake based on flour, sugar and eggs; Contraceptive sponge, a method of contraception; Gauze sponge or surgical sponge, used in surgery and medicine
Sponge cake is better for making strawberry shortcake because sponge cake easily soaks up the flavor of fresh strawberries. Traditional strawberry shortcake is made with shortcake, a crumbly cake ...
Thalia is a genus of tunicates belonging to the family Salpidae. [1]The genus has almost cosmopolitan distribution. [1]Species: [1] Thalia cicar van Soest, 1973; Thalia democratica (Forskål, 1775)