Respuesta :
Adult tunicates are placed in the Phylum Chordata because they have a tail behind the anus. .
Why Tunicates are placed in the Phylum Chordata ?
- Tunicates are considered headless chordates because tunicates and chordates share the following features: dorsal hollow nerve cord; And at some point in life the gills in the throat will split.
- The notochord is a rigid column of cells, each containing a fluid-filled vacuole. The notochord of urochordates increases body length but does not persist throughout life, except in Larva.
- The notochord in vertebrate embryos is replaced by cartilage or bony vertebrae to support adult vertebrates. The hollow dorsal nerve cord is absorbed during tunicate metamorphosis.
- Adult tunicates have small cerebral ganglia but no brain. In vertebrates, the nerve cord becomes the spinal cord and brain. Prominent gill slits are present in both larval and adult tunicates. On the other hand, in many vertebrates (reptiles, birds, mammals, and most amphibians), the gill slits found in embryos deform and close in adults. Fish and some amphibians have their own.
- Because they live in the same habitats as other chordates. Tunicates are marine invertebrates that belong to the subphylum Tunicate and the phylum Chordata, which includes all animals with dorsal nerve cords and notochords.
- The adult tunic is sessile, retains only a pharyngeal slit, and lacks the notochord, the dorsal hollow nerve cord, and the retroanal tail.
To learn more about tunicates with the given link
https://brainly.com/question/23972962
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