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Natural selection works on mutations that are already in place. The environmental changes will select for certain mutations if the selective pressure is supplied long enough for several generations of offspring to carry a higher percentage of the mutation.
Evolution is enabled by natural selection: the ability of a species through its individuals to make long-term improved changes in its response to its environment through beneficial mutations, resulting in the species being able to reproduce itself more successfully than before.
At the Linnaen Society meeting sometime in 1858 Charles Robert Darwin and Alfred Russel Wallace had both their papers presented before the Society on which they proposed the idea of natural selection as a mechanism of evolution.
No. Typically the symptoms of HD do not become apparent until long after a person would be of child bearing age.
That's part of the theory of evolution by natural selection (Darwinism) but not the main principle, and some other (obsolete) theories also included this belief. I don't know if there is a more specific answer, but if you can't find one, just go with natural selection.
The anteater has a long snout. Since the anteater is toothless, it has a long tongue that it uses to catch the ants. The anteater uses its snout and claws to reach into ant nests. The anteater has long hair as a protection against bites from the ants that they hunt and eat.
One long argument with supporting evidence for the theory of evolution by natural selection. Starting with artificial selection, used as an analogue for natural selection, and ending with the distribution of animals, biogeography, Darwin showed the species arose through natural process over long lengths of time.
The insectivore that has a long tongue and eats ants is a aardvark. The aardvark also has a long nose.
No. Not by a long shot.
the long neck of a giraffe
The Holocaust has nothing to do with natural selection, or vice versa. The Holocaust was the result of atrocious crimes committed under the leadership of a few madmen, inspired by a long tradition of antisemitism. Natural selection is a model that describes differential reproductive success in natural populations, under natural circumstances.
24years
The answer is a anteater. Let me know if there is any thing else.
The Long Neck of a Giraffe .
Natural selection over long periods of time leads to a fitter and more reproductively successful group of organisms thus becoming more common in a population. It will lead to evolution.
The Giant Anteater is classed as 'Near Threatened' by the IUCN. As anteaters are placid creatures they are preyed upon by large cats such as Pumas and Jaguars. However, a cornered anteater will ride up on its hind legs, using its tail for support and use its long claws which are 4 inches long, to fight off the attacker. Anteaters are also hunted in South America for fur and food.
Natural selection is the type of selection that can result in a branching evolutionary tree if it goes on long enough. This is because organisms may eventually evolve into a distinct species.