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Hace 3 días · A study in 2001 based on comparisons of ribosome DNA concluded that the most fundamental division within sponges was between glass sponges and the rest, and that Eumetazoa are more closely related to calcareous sponges (those with calcium carbonate spicules) than to other types of sponge.
Hace 5 días · Eumetazoa. Os animais incluídos no clado Eumetazoa são caracterizados por apresentarem o epitélio dividido em uma camada interna de células digestivas, a endoderme, e uma camada externa protetiva, ou dorsal, a ectoderme. Na linhagem que deu origem aos eumetazoários, as funções de transporte e de metabolismo realizadas pelas ...
Hace 2 días · Onychophora / ɒ n ɪ ˈ k ɒ f ə r ə / (from Ancient Greek: ονυχής, onyches, "claws"; and φέρειν, pherein, "to carry"), commonly known as velvet worms (due to their velvety texture and somewhat wormlike appearance) or more ambiguously as peripatus / p ə ˈ r ɪ p ə t ə s / (after the first described genus, Peripatus), is a phylum of elongate, soft-bodied, many-legged animals.
Hace 2 días · 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 2 días · The chimpanzee ( / tʃɪmpænˈzi /; Pan troglodytes ), also simply known as the chimp, is a species of great ape native to the forests and savannahs of tropical Africa. It has four confirmed subspecies and a fifth proposed one.
Hace 5 días · phylogenetic tree, a diagram showing the evolutionary interrelations of a group of organisms derived from a common ancestral form. The ancestor is in the tree “trunk”; organisms that have arisen from it are placed at the ends of tree “branches.”
Hace 2 días · Amazon.com is a Seattle, Washington–based e-commerce and cloud computing giant whose humble beginnings can be traced to founder Jeff Bezos ’s garage, where he began selling books on the still-emerging World Wide Web. Although the company is best known among consumers for its retail platform, a majority of its operating profits (as of 2024 ...
