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6 giorni fa · 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.
1 giorno fa · La tigre ( Panthera tigris Linnaeus, 1758) [2] [3] è un mammifero carnivoro della famiglia dei felidi. È il più grande dei cosiddetti " grandi felini " che costituiscono il genere Panthera (tigre, leone, giaguaro, leopardo e leopardo delle nevi ).
3 giorni fa · vertebrate, any animal of the subphylum Vertebrata, the predominant subphylum of the phylum Chordata. They have backbones, from which they derive their name. The vertebrates are also characterized by a muscular system consisting primarily of bilaterally paired masses and a central nervous system partly enclosed within the backbone .
2 mag 2024 · Crocodilia (or Crocodylia, both / krɒkəˈdɪliə /) is an order of mostly large, predatory, semiaquatic reptiles known as crocodilians. They first appeared 94 million years ago in the Late Cretaceous period ( Cenomanian stage) and are the closest living relatives of birds, as the two groups are the only known survivors of the Archosauria.
2 mag 2024 · Around 94 species. Cetacea ( / sɪˈteɪʃə /; from Latin cetus ' whale ', from Ancient Greek κῆτος ( kêtos) ' huge fish, sea monster ') [3] is an infraorder of aquatic mammals belonging to the order Artiodactyla that includes whales, dolphins, and porpoises. Key characteristics are their fully aquatic lifestyle, streamlined body shape ...
23 ore fa · Etymology. Until the 16th century, sharks were known to mariners as "sea dogs". This is still evidential in several species termed "dogfish," or the porbeagle.The etymology of the word shark is uncertain, the most likely etymology states that the original sense of the word was that of "predator, one who preys on others" from the Dutch schurk, meaning 'villain, scoundrel' (cf. card shark, loan ...
12 apr 2024 · Urochordata, also known as Tunicates or Sea Squirts, is a subphylum of the Phylum Chordata. These marine filter-feeding invertebrates are found in seawater and play an essential role in marine ecosystems. They have a unique life cycle, with distinct characteristics exhibited by their larvae and adults.
