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Há 2 dias · The vertebrates are the only chordate group with neural cephalization, and their neural functions are centralized towards a series of vesicular enlargements in the head, which give rise to a brain.
Há 2 dias · Background. Ascidians (Phylum: Chordata, Class: Ascidiacea), or sea squirts, are the largest and most diverse class of the sub-phylum Tunicata (also known as Urochordata). They comprise approximately 3000 described species found in all marine habitats from shallow water to the deep sea.
Há 4 dias · Enantiornithes. The Enantiornithes, also known as enantiornithines or enantiornitheans in literature, are a group of extinct avialans ("birds" in the broad sense), the most abundant and diverse group known from the Mesozoic era. [3] [4] [5] Almost all retained teeth and clawed fingers on each wing, but otherwise looked much like modern birds ...
Há 2 dias · Salamandroidea. Native distribution of salamanders (in green) Salamanders are a group of amphibians typically characterized by their lizard -like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults. All ten extant salamander families are grouped ...
20 de mai. de 2024 · Biology. Source: Wikipedia.org. Chordates are a fascinating group of animals that encompass a wide range of species, from fish and birds to mammals and humans. They are characterized by the presence of a notochord, a flexible rod-like structure that runs along the length of their bodies.
6 de mai. de 2024 · Vertebrate, any animal of the subphylum Vertebrata. They have backbones and are also characterized by a muscular system consisting primarily of bilaterally paired masses and a central nervous system partly enclosed within the backbone. Its members include fishes, amphibians, reptiles, birds, and mammals.
12 de mai. de 2024 · In addition, recent developmental genes expression data suggest that the chordate and deuterostomes ancestor was a worm-like solitary organism, similarly to enteropneust hemichordates (Brown et al. 2008). Citation Usage of data from the Hemichordata World Database in scientific publications should be acknowledged by citing as follows:
