Dendrochronology and carbon 14 dating non pay dating sites

In 1952 Stanley Miller and Harold Urey synthesized organic compounds from inorganic precursors found in the Earth’s original atmosphere, producing more than 20 different amino acids using electrical sparks to simulate lightning.Speciation is the process by which new species are formed.Cynognathus, a Triassic land reptile, fossils are found in South America and Africa.The Triassic era was between 250,000,000 and 200,000,000 years ago.” The shells were deposited in layers on the Ocean floor over millions of years, layers that would be violently broken up and rippled into a mountain range 480,000,000 years ago by a catastrophic earthquake.South America fits into Africa, rocks get younger the closer you get to where the crust is spreading under the ocean, and satellites have observed the drift.Stromatolites grow at a maximum rate of 5cm every 100 years and a stromatolite 1.5 meters in diameter was found in Virginia and a 500cm high stromatolite was found at the foot of Wutai Mountain in China.How genes and mutations work give us insights and tools into how evolution works.

You will never find a Neanderthal bone in the same stratum as a Tyrannosaurus rex bone.Please feel free to refine this list and repost it, just please preserve the photo credits and links to photographers.Also, suggestions for improvement on any items is welcome as this is a lot of material over a wide range of scientific fields, so I have certainly bungled some things here.When a species gets split into two groups by a river, mountain range, island, lake, or ocean via earthquakes, floods, droughts, climate change, or continental drift, the two populations will begin to drift genetically.Mutations that reduce an organism’s ability to survive and reproduce will be less likely to end up in offspring.

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