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Hace 3 días · Vertebrates ( / ˈvɜːrtəbrɪts, - ˌbreɪts /) [3] are deuterostomal animals with bony or cartilaginous axial endoskeleton — known as the vertebral column, spine or backbone — around and along the spinal cord, including all fish, amphibians, reptiles, birds and mammals.
- Animalia
- Vertebrata, J-B. Lamarck, 1801
Hace 1 día · Neanderthal, Neandertal, Paleantropo. Homo neanderthalensis ( King, 1864 ), comunemente detto uomo di Neandertal [1], è un ominide strettamente affine a Homo sapiens che visse nel periodo Paleolitico medio, compreso tra i 200 000 e i 30 000 anni fa. [2]
Hace 5 días · Bilateria. O clado Bilateria inclui todos os metazoários que apresentam corpos organizados em um eixo antero-posterior (ou sagital) fazendo com que possam, em sua grande maioria, serem divididos em duas metades simétricas. Os animais bilaterais, também chamados triploblásticos (Triploblastica) apresentam três camadas embrionárias - a ...
Hace 2 días · Canis lupus est une espèce de canidés comprenant plusieurs sous-espèces sauvages, domestiques ou férales, toutes parfaitement interfécondes, comme le loup gris commun [1] (Canis lupus lupus), le loup arctique [1] (Canis lupus arctos), le chien (Canis lupus familiaris), le dingo (Canis lupus dingo), le loup des Indes (Canis lupus pallipes) ou encore le chien chanteur de Nouvelle-Guinée ...
Hace 2 días · Iranian politicians killed in the 2024 Varzaqan helicopter crash: [22] Mohammad Ali Ale-Hashem, 61–62, representative of the Supreme Leader in East Azerbaijan (since 2017) Hossein Amir-Abdollahian, 60, minister of foreign affairs (since 2021), ambassador to Bahrain (2007–2010) Malek Rahmati, 41–42, governor-general of East Azerbaijan ...
Hace 4 días · Crossing over, as related to genetics and genomics, refers to the exchange of DNA between paired homologous chromosomes (one from each parent) that occurs during the development of egg and sperm cells (meiosis). This process results in new combinations of alleles in the gametes (egg or sperm) formed, which ensures genomic variation in any ...
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