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A book called The Origin of the Species explained the process of natural selection by way of survival of the fittest. The survivors are those that are more able to win over their weaker peers and survive, procreate and continue to live and prosper.
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∙ 12y ago
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∙ 13y ago1) A characteristic/trait which provides an advantage(s) to the survival of the organism, in response to 2) an environmental factor/selection pressure.
The environmental factor can be any of a vast array of pressures such as mate selection, sleeping habits, predator evasion, primary food source, etc.
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∙ 11y agoA dramatic change in in the enviroment; a new land form such as a lake can separate a group of species and then those organism will learn how to survive in the new enviroment and only the ones with traits that help them to survive will survive and they will reproduce and possibly cause speciation.
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∙ 10y agorepeated use of any of our body part , with which we become dependent on is the requirements for evolution. also , the ability to adapt to environment that is changing every minute is also required .
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∙ 11y agoNatural selection needs competition in order to occur. This competition between species and individuals force the "survival of the fittest"
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∙ 11y agoGenetic variance (eg. differences in height, muscularity, etc.) and environmental change (eg. change in terrain, available food, etc.)
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∙ 14y agocatastrophic events
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∙ 8y agoEnvironmental change or pressure
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What type of selection that humans control?
Artificial selection.Artificial selection is the selection, by humans, of which individual plants or animals to breed from. In this way desirable characteristics, such as increased yield or disease resistance, can be preserved or improved.Charles Darwin used artificial seletion as a model for how evolution could take place in nature, where competiton between individuals replaced the selective action of humans. He called the natural process 'natural selection'.See http://evolution.berkeley.edu/evosite/evo101/IIIE4Evochange.shtmlfor an excellent account.
What did Mayr take from Darwin's work?
Mayr showed that Charles Darwin's theory of natural selection applies to the evolution of genes at the molecular level.
What is the difference between selective breeding and natural selection?
In natural selection, the animals take time and evolve slowly. In selective breeding, humans can transfer genes from one organism into another organism.
What are the 5 ways a population can evolve?
A population will most likely evolve when there is a small population, mutations exists, natural selection may take place, nonrandom mating occurs, and/or gene flow may occur. Sexual selection, genetic drift, Gene flow, Mutation, and natural selection are five ways a population can evolve. Sexual selection is natural selection arising through preference by one sex for certain characteristics in individuals of the other sex. Genetic drift is variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce. Gene flow is the transfer of alleles or genes from one population to another. Mutation is the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes. Natural selection is the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.
How long does it take for natural selection to work?
"Natural selection is the process by which heritable traits that make it more likely for an organism to survive and successfully reproduce become more common in a population over successive generations. It is a key mechanism of evolution." - Wikipedia.orgThey key words in this statement in which describe Natural Selection is: Successive Generations. Meaning more than one, or even a few generations. Therefor your time in which an evolutionary trait takes to develop depends on two main factors: The type of Organism that you are studying, and the environment in which it lives. If there are less "X" factors then the Organism will be able to advance much more quickly.
Was it absolutely necessary for natural selection to take place?
Genetic change is necessary for natural selection to take place
Natural selection need in order to take place?
Natural selection needs competition in order to take place.
Where did natural selection take place?
Everywhere where there is life.
Why is natural variation important when it comes to evolution?
Only in the sense that natural selection needs variations in organisms to select from. Evolution could take place by random processes, such as genetic drift, or geographic processes, such as gene flow, but only natural selection causes the adaptive change that results in speciation.
Describe how natural selection is related to organic evolution?
Organic evolution is the process by which the genetic makeup of a species changes over time. There are several mechanisms by which this can happen: natural selection, genetic drift (chance), migration and mutation. So natural selection is one possible way in which evolution can take place. Most biologists agree that natural selection is the most important mechanism of evolution. This mechanism was first discovered by Charles Darwin and, independently. by Alfred Wallace.
Does natural selection take place without human control?
yes natural selection takes place without human control. In natural selection it is the environment selecting the traits/alleles. However there is something called artificial selection which is evident in dog breeding. In that case humans select for the traits. Artificial selection can have detrimental effects on a population though. Some dogs have been selected for being very small and having a flat nose. These dogs are so small now that they cannot give birth naturally and have no use of their nasal passages
When did the first holocaust selection take place?
Early June 1944
How is a population different after it has experienced natural selection?
A population is different after natural selection because some of the negative genes have been weeded out. By experiencing natural selection things like obesity, weakness, and disease will be cut from the genetic pool (after many generations of coarse). Take a look at the Nam family to get a good example of this.
What is the fifference between site location and site selection?
Site location is simply the address or coordinates of where the 'site' or even is going to take place. Site selection is the process of selecting the location or the building or event that is going to take place.
What is natural enviornment?
an environment where nature can take its place
How can evolution be influenced by natural selection?
Evolution is the change in allele frequency over time in a population of organisms. Natural selection is the nonrandom survival and reproductive success of randomly varying organisms. So, if an organism is selected by having greater reproductive success than it's conspecifics this organism will leave descendents that have the traits for this success and if enough descendents start making up a greater bit of the population then genes( alleles ) will change in frequency and evolution will take place. Natural selection is also the driver of adaptive change leading to speciation.
What type of selection that humans control?
Artificial selection.Artificial selection is the selection, by humans, of which individual plants or animals to breed from. In this way desirable characteristics, such as increased yield or disease resistance, can be preserved or improved.Charles Darwin used artificial seletion as a model for how evolution could take place in nature, where competiton between individuals replaced the selective action of humans. He called the natural process 'natural selection'.See http://evolution.berkeley.edu/evosite/evo101/IIIE4Evochange.shtmlfor an excellent account.
