Fermiment radiometric dating

16-Oct-2017 18:35

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What is impressive is not just the numbers but also the incredible heterogeneity in size, shape, and way of life—from lowly bacteria, measuring less than a thousandth of a millimetre in diameter, to stately sequoias, rising 100 metres (300 feet) above the ground and weighing several thousand tons; from bacteria living in hot springs at temperatures near the boiling point of water to fungi and algae thriving on the ice masses of Antarctica and in saline pools at −23 °C (−9 °F); and from giant tube worms discovered living near hydrothermal vents on the dark ocean floor to spiders and larkspur plants existing on the slopes of Mount Everest more than 6,000 metres (19,700 feet) above sea level.The virtually infinite variations on life are the fruit of the evolutionary process.Numerous fossils belonging to many living phyla and exhibiting mineralized skeletons appear in rocks about 540 million years old.These organisms are different from organisms living now and from those living at intervening times.Hereditary variants were thought to arise naturally in populations, and then these were either selected for or against by the contemporary environmental conditions.In this Darwin and other 19th-century biologists found compelling evidence for biological evolution in the comparative study of living organisms, in their geographic distribution, and in the fossil remains of extinct organisms.

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…centre of the theory of evolution as proposed by Charles Darwin and Alfred Russell Wallace were the concepts of variation and natural selection.

It also shows successions of organisms through time ( faunal succession, law of; geochronology: Determining the relationships of fossils with rock strata), manifesting their transition from one form to another.

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