Resultado da Busca
Os cordados ( Chordata, do latim chorda, corda) constituem um filo dentro do reino Animalia que inclui os vertebrados, os anfioxos e os tunicados. Estes animais são caracterizados pela presença de uma simetria bilateral, notocorda, sistema digestivo completo, um tubo nervoso dorsal, fendas branquiais e uma cauda pós-anal, em pelo menos uma ...
A chordate ( / ˈkɔːrdeɪt / KOR-dayt) is a deuterostomic animal belonging to the phylum Chordata ( / kɔːrˈdeɪtə / kor-DAY-tə ). All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics ( synapomorphies) that distinguish them from other taxa.
Chordate - Simple English Wikipedia, the free encyclopedia. Contents. hide. Beginning. Classaxonomy. Phylogeny. Origin of chordates. References. Other websites. Chordates, phylum Chordata, are a phylum of animals which have a notochord. The group includes vertebrates, with some closely related invertebrates . Classaxonomy. Phylum Chordata.
The Cambrian chordates are an extinct group of animals belonging to the phylum Chordata that lived during the Cambrian, between 538 and 485 million years ago. The first Cambrian chordate known is Pikaia gracilens, a lancelet -like animal from the Burgess Shale in British Columbia, Canada.
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.
The chordates are named for the notochord, which is a flexible, rod-shaped structure that is found in the embryonic stage of all chordates and in the adult stage of some chordate species. It is located between the digestive tube and the nerve cord, and provides skeletal support through the length of the body.
The chordates are named for the notochord, which is a flexible, rod-shaped mesodermal structure that is found in the embryonic stage of all chordates and in the adult stage of some chordate species. It is strengthened with glycoproteins similar to cartilage and covered with a collagenous sheath.
