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Selective pressure is any phenomena which alters the behavior and fitness of living organisms within a given environment. It is the driving force of evolution and natural selection, and it can be divided into two types of pressure: biotic or abiotic
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∙ 15y ago
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∙ 13y agoAccording to Darwin's theory a selection pressure are outside forces in the environment that eventually make certain phenotypic traits appear. An example of this is a brown mouse in a field.
Molten lava spills from a crack in the earth and creates a black surface. The mouses color does not allow for it to be naturally competitive and it becomes prey more often. Darker mice do better than lighter colored one. Sooner or later as generations pass, a mutation occurs in the mouses gene and causes some mice to appear black. The black mouse blends in with the surface and it becomes the ultimate species within the population. Generation after generation, the mouse reproduces more black mice and less brown mice. Black mice are more competitive than the browns ones so the brown ones die out and the black become the dominant species. That is an example of a selection pressure.
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∙ 13y agoSelection pressure is a factor such as temperature and predation that affects organisms and result in selective reproduction of phenotypes. When selection pressure is negative, it eliminates any successful reproduction of individuals having a certain characteristic.
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∙ 14y agoSelection pressure is any phenomena which alters the behavior and fitness of living organisms within a given environment. It is the driving force of evolution and natural selection.
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∙ 9y agoThe phrase selective pressure means any reason for organisms to have a survival benefit. These certain phenotypes may also have its disadvantages.
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∙ 14y agoselection pressure noun Biology
An agent of differential mortality or fertility that tends to make a population change genetically.
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∙ 12y agoselective pressure means: any cause that reduces reproductive success in a proportion of a population, potentially exerts evolutionary pressure or selection...
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∙ 11y agoya mum
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What are some examples of selective pressure?
drought
When is genetic drift a major factor in evolution?
When there is low gene flow When there is no selective pressure When there is a bottleneck
The definition of selective reproduction?
A process known to be an abortion of one or more of the embryos in pregnancy with cases of multi-fetal pregnancy. Also known as selective termination.
How the environment preadators and mutations affect natural selection?
Predators create a selective pressure on a population. For example, birds that eat insects put a selective pressure on the insects to have better camouflage. Lions that run fast put a selective pressure on their prey to be able to run even faster.Its the same as a selective pressure created by the environment like adaptation to living in a cold environment. Those that can survive the cold the best live. The insects with the best camouflage survive as do the animals that can run the fastest.
What is the definition of inbreeding?
Inbreeding is a selective breeding method in which 2 individuals with identical or similar sets of alleles are crossed.
How do you use Selective pressure in a sentence?
Selective pressure is evolutionary pressure.The animals evolved due to selective pressure.Selective pressure caused the color to darken.
What is the definition of selective transport?
selective transport is the transport of specific substances by means of protein channels and pumps.
What are some examples of selective pressure?
drought
When is genetic drift a major factor to evolution?
When there is low gene flow (apex 10.1.2)
What is the definition of selective reverse mutation?
It is a change in a gene that specifically selected
What are the selective pressure of the cuttlefish environment?
They can go up to 16384049373
What is the definition for selective diffusion?
controls what enters and exits membrane by using proteins
When is genetic drift a major factor in evolution?
When there is low gene flow When there is no selective pressure When there is a bottleneck
What required men to register with the government for random military service?
The Selective Service Act, although the definition you give of it is a bit misleading.
The definition of selective reproduction?
A process known to be an abortion of one or more of the embryos in pregnancy with cases of multi-fetal pregnancy. Also known as selective termination.
How the environment preadators and mutations affect natural selection?
Predators create a selective pressure on a population. For example, birds that eat insects put a selective pressure on the insects to have better camouflage. Lions that run fast put a selective pressure on their prey to be able to run even faster.Its the same as a selective pressure created by the environment like adaptation to living in a cold environment. Those that can survive the cold the best live. The insects with the best camouflage survive as do the animals that can run the fastest.
What might bring about the evolution of the new species?
The separation of a population, selective pressure, and/or time.
