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Tunica


Tunicata
Cephalochordata
The Origin and Evolution of Animals (Metazoa) ...
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tunicates Chordates that show the three basic chordate characteristics only in the larva.
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tunica
Any layer of tissue or membrane that encloses a structure or organ in either an animal or plant.
Covered in:
Lab 13 Animal Diversity III
Lab 16 Rat Respiratory and Circulatory Systems ...
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When they are disturbed, tunicates tend to squirt water out. Water passes into a pharynx and out numerous gill slits, the only chordate characteristic that remains in adults.
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Under a tough fibrous shell, the tunica albuginea, the testis contains very fine coiled tubes called the seminiferous tubules. The tubes are lined with a layer of cells that, from puberty into old-age, produce sperm cells.
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Annelid worms and tunicates have a primitive brain called a ganglionic mass, which is a bundle of several nerves.
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A group of planktonic tunicates that secrete a gelatinous house, used to strain unsuitable particles (large particles are rejected).
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a ciliated, mucus-secreting groove in the ventral surface of the pharnyx of non-vertebrate chordates (e.g, tunicates and lancelets); it aids in transporting food to the esophagus.
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sedentary -- Living in a fixed location, as with most plants, tunicates, sponges, etc. Contrast with motile.
sediment -- Any solid material that has settled out of a state of suspension in liquid.
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Synonym: tunica serosa. 2) In embryology, the term is used to mean the most exterior extraembryonic membrane.
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: A clonal hermaphrodite (Phylum
Chordata
, Subphylum
Tunicata
, Class
Ascidian
=sea squirts). It grows fast, reproduces weekly, and thus, a good model for genetic studies of ...
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A chordate without a backbone, commonly called a tunicate, a sessile marine animal.
uterus
[L. womb] ...
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