что такое инфляция и чем она опасна для государства
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что такое инфляция и чем она опасна для государства, National Center for Biotechnology Information, Rainforest Diversity - Mongabay.com, How many humans have lived on Earth? It's a very big number , 6.3: The Biodiversity Crisis - Biology LibreTexts, New species described in 2020 - ScienceDaily, Hinduism and The Total Number of Species or Life Forms On , The fungi: 1, 2, 3 5.1 million species? - PubMed.
The five mass extinctions of the Phanerozoic, as defined by the percentage of extinct genera of marine animals. Each mass extinction is highlighted by a red number (1–5) and the percentage of extinct species with respect to the total. The orange line represents the background extinction rates (note that not all extinction bursts above background rates are considered mass extinctions). Geological periods: O, Ordovician; S, Silurian; D, Devonian; C, Carboniferous; P, Permian; Tr, Triassic; J, Jurassic; K, Cretaceous; Pg, Paleogene; N, Neogene. Based on Raup and Sepkoski ().If we take these estimates as a measure, the current anthropogenic biodiversity crisis does not qualify as a comparable mass extinction, as the number of species that went extinct during the past 500 years ranges between 0.5 and 0.01% of the documented and the estimated number of living species, respectively. However, if we consider the average rate of 180 extinctions per century, 75% of the total known species (1.4 million species) would be extinct in 800,000 years, and 75% of the total estimated species (6.5 million species) would be extinct in 3.6 million years. Thus, the rate of the current biodiversity loss is within the range of a mass extinction. If we added dark and prehistoric extinctions, of which we have no reliable estimates, extinction rates would be even greater and the time for reaching the 75% extinction boundary would be shorter. However, the situation might be even worse, as the IUCN extinction records seem to underestimate the period before 1,800., We would like to show you a description here but the site won’t allow us., Although they cover less than 2 percent of Earth's surface, they house an estimated 50 percent of all life on the planet. The immense numbers of creatures that inhabit the tropical rainforests are so great--an estimated 5-50 million species--they are almost incomprehensible..
Summing these estimates gives a total of around 78.48 billion births. Adjustments and more refined estimates, such as those from the PRB, typically result in a widely cited figure: approximately 108 billion people have lived, walked, and died on Earth since the dawn of humanity. Earth has been home to 108 billion humans, These measurements include numbers of species, genetic diversity, chemical diversity, and ecosystem diversity. The number of described species is estimated to be 1.5 million with about 17,000 new species being described each year. Estimates for the total number of species on Earth vary but are on the order of 10 million., New species described in 2020 Date: July 1, 2020 Source: University of Turku Summary: It is estimated that 15 million different species live on our planet, but only 2 million of them are currently , Ancient Hindu texts such as the Bhagavad Gita and Padma Purana estimate the total number of species on Earth to be 8.4 million. The Padma Purana further categorizes these species into groups such as water-based, immobile, reptiles, birds, terrestrial animals, and human-like animals. Modern scientific studies estimate the total number of species to be around 8.7 million, plus or minus 1.3 , They provide enzymes and drugs and serve as experimental organisms. In 1991, a landmark paper estimated that there are 1.5 million fungi on the Earth. Because only 70000 fungi had been described at that time, the estimate has been the impetus to search for previously unknown fungi., .