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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. Ascidians are found all over the world, usually in shallow water with salinities over ...
1 Characteristics. 2 Taxonomy. 3 References. ... Phlebobranchia is an order of sea squirts in the class Ascidiacea, [1] first described by Fernando Lahille in 1886. [2]
Stolidobranchia is an order of tunicates in the class Ascidiacea. [1] The group includes both colonial and solitary animals. They are distinguished from other tunicates by the presence of folded pharyngeal baskets. This provides the etymology of their name: in ancient Greek, στολίς, ίδος means the "fold" of a cloth.
Diagrammatic section of an Ascidia, representing the three sacs and the branchial sac as the pharynx or throat: (a) branchial orifice; (b) atrial orifice; (c) tunic or test (d) mantle; (e) branchial sac; (f) gullet; (g) stomach; (h) anal orifice; (i) dorsal lamina; the dotted line indicates the endostyle.
We’re living in an era of “tweakments,” where minimally invasive cosmetic procedures like Botox and filler have been reduced to nothing more than an ordinary step in one’s skincare regimen ...
The doctors and nurses didn’t believe Tomisa Starr was having trouble breathing. Two years ago, Starr, 61, of Sacramento, California, was in the hospital for a spike in her blood pressure.
There's growing evidence to suggest that GLP-1 drugs, which include Ozempic's semaglutide, may be useful for treating alcohol use disorder.
Avrum Z. Bluming, MD, an expert on hormone replacement therapy, debunks the menopause misconceptions that keep women from getting treatment. It's Time to Stop Believing These Common Menopause ...