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All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics (synapomorphies) that distinguish them from other taxa. These five synapomorphies are a notochord, a hollow dorsal nerve cord, an endostyle or thyroid, pharyngeal slits, and a post-anal tail.
29 de mar. de 2024 · Chordate, any member of the phylum Chordata, which includes the vertebrates, the most highly evolved animals, as well as two other subphyla—the tunicates and cephalochordates. Some classifications also include the phylum Hemichordata with the chordates.
7 de abr. de 2019 · Characteristics of Chordates. Pharyngeal Slit; Dorsal Hollow Nerve Cord; Notochord; Post-Anal Tail; Subphyla of Chordates. Subphylum Vertebrata; Subphylum Cephalochordata; Subphylum Urochordata; Examples of Chordates. Lampreys; Sea Squirts; Related Biology Terms; Quiz
Characteristics of Chordata. Animals in the phylum Chordata share four key features that appear at some stage during their development: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail (Figure 29.1.2 29.1. 2 ). In some groups, some of these are present only during embryonic development.
Figure 29.3 Chordate features. In chordates, four common features appear at some point during development: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. The endostyle is embedded in the floor of the pharynx.
Figure 29.3 Chordate features. In chordates, four common features appear at some point during development: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. The endostyle is embedded in the floor of the pharynx.
In chordates, four common features appear at some point during development: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. The dorsal hollow nerve cord derives from ectoderm that rolls into a hollow tube during development.
