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Extinction is the termination of a taxon by the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.
23. Apr. 2024 · Extinction, in biology, is the dying out or extermination of a species. It occurs when species are diminished because of environmental forces (natural or human-made) or because of evolutionary changes in their members. Learn more about mass extinctions and modern extinctions.
19. Okt. 2023 · Extinction is the dying out of a species. Extinction plays an important role in the evolution of life because it opens up opportunities for new species to emerge.
5. Feb. 2019 · Extinction happens when environmental factors or evolutionary problems cause a species to die out. The disappearance of species from Earth is ongoing, and rates have varied...
26. Sept. 2019 · At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass ...
Lexikon der Biologie Extinktion. Extinkti o n w [von latein. exstinctio = Auslöschung], 1) allgemein: Auslöschung. 2) die frequenz- bzw. stoffabhängige Schwächung der Intensität einer Strahlung durch Absorption, Streuung und Reflexion in bzw. an Materie, z.B. Extinktion des Sonnen- Lichts in der Erd- Atmosphäre.
29. Mai 2019 · Extinction is a natural phenomenon: After all, more than 90 percent of all organisms that have ever lived on Earth aren’t alive today.
