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5 giorni fa · The Ediacaran ( / ˌiːdiˈækərən /; formerly Vendian) biota is a taxonomic period classification that consists of all life forms that were present on Earth during the Ediacaran Period ( c. 635–538.8 Mya ). These were enigmatic tubular and frond-shaped, mostly sessile, organisms.
4 giorni fa · Gut microbiota. Gut microbiota, gut microbiome, or gut flora are the microorganisms, including bacteria, archaea, fungi, and viruses, that live in the digestive tracts of animals. [1] [2] The gastrointestinal metagenome is the aggregate of all the genomes of the gut microbiota.
4 giorni fa · t. e. A microbiome (from Ancient Greek μικρός (mikrós) 'small', and βίος (bíos) 'life') is the community of microorganisms that can usually be found living together in any given habitat. It was defined more precisely in 1988 by Whipps et al. as "a characteristic microbial community occupying a reasonably well-defined habitat which ...
La Convention on Biological Diversity (CBD) definisce la biodiversità come la varietà e variabilità degli organismi viventi e dei sistemi ecologici in cui essi vivono, evidenziando che essa include la diversità a livello genetico, specifico ed ecosistemico.
2 mag 2024 · These interactions between individuals, between populations, and between organisms and their environment form ecological systems, or ecosystem s. Ecology has been defined variously as “the study of the interrelationships of organisms with their environment and each other,” as “the economy of nature,” and as “the biology of ecosystems.”.
8 mag 2024 · The microbiota is a collective term for the micro-organisms that live in or on the human body. Specific clusters of microbiota are found on the skin or in the gastrointestinal tract, mouth,...
25 apr 2024 · 5 ice and snow-cover protect most terrestrial biota from solar uv radiation until late spring early summer When snow and ice melt in summer, Antarctica's terrestrial organisms (which include invertebrates, plants, lichen, algae and microorganisms) lose their protective shelter and are exposed to high levels of visible and UV-B radiation (Downie et al., 2023 ; Singh et al., 2011 ; Figure 2 ).
