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on the galapagos islands
During Darwins visit to the Galapagos island he observed that these islands had many unique organisms, most of which were similar to but different from the plants and animals from the nearest mainland.... thus this indicated how population evolved. Darwin called this "descent with modification" meaning an ancestral species could diversify into many descendant species by the accumulation of adaptation to various environment. His observation described the theory of evolution.
He discovered that plants and animals with the most suitable conditions in an area are the most likely to survive. This is called natural selection.
While living organisms tend to overprodue, the population still remains stable over time and across generations. therefore, there is competition, and success in competition is due to variability. Competition and variability together function to select the most adaptive characteristic, giving us natural selection
About 99.9% of all educated scientists. The field of biology could no longer progress without the understanding of evolution via natural selection.
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Richard Owen
natural selection
on the galapagos islands
Darwins theory of evolution :)
The principle of evolution by means of natural selection.
Survival of the fittest
natural selection
fittest
which is not part of darwins theory of natural selction
artificial selection
artificial selection