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What characteristic within populations cause natural selection to occur?
Genetic variation. If there were no variation in the genes/phenotype then natural selection would have nothing to select from.
Why would natural selection not occur in population?
It has not reached carrying Capacity
Is inheritance a requirement for natural selection?
Yes it does. Without variance in the organisms genome, that gives variance to the phenotype, there would be nothing for natural selection to select from.
How is natural selection used in artificial selection?
Natural variation in artificial selection is used because humans choose from among the naturally occurring variation s in species. Natural selection is related to species fitness because Darwin called natural selection survival of the fittest because those that could survive would carry their species on there for being the naturally selected.
What best explains a natural selection in a antelope population?
How it changes in response to its environment.
What characteristic within populations cause natural selection to occur?
Genetic variation. If there were no variation in the genes/phenotype then natural selection would have nothing to select from.
Which of these is necessary for natural selection to occur genetic engeneering genetic variation asexual reproduction or enviormental stability?
Genetic variation is necessary for natural selection to occur. This variation provides the raw material for differential survival and reproduction, which drives the process of natural selection. Without genetic variation, there would be no differences for natural selection to act upon.
Why are variations in a species needed for natural selection to occur?
Variations in a species are needed for natural selection to occur because they provide the raw material for evolutionary change. Without variation, there would be no differences for natural selection to act upon, and individuals within a species would be identical. Variations allow some individuals to be better adapted to their environment, giving them a higher chance of survival and reproduction, thus driving the process of natural selection.
Why must there be genetic variation in order for natural selection to occur?
Genetic variation is necessary for natural selection to occur because it provides different traits and characteristics within a population. These variations create diversity, allowing some individuals to have traits that are more advantageous for survival and reproduction in certain environments. Without genetic variation, there would be no differences in traits to be selected for or against, and natural selection would not be possible.
Why would natural selection not occur without genetic variations on species?
Without variation it would not be selecting, just random death of identical units.
A small number of finches live in a protected bird area. They are given as much food as they need and have plenty of space. Why would natural selection not occur in this population?
There is no need for it to occur. Only if the environment changes and less food is found would there be a change. The environment selects the birds that do the best under the new conditions and the others will die.
Why would natural selection not occur in population?
It has not reached carrying Capacity
Why would natural selection not occur in this population?
Natural selection may not occur in a population if there is no variation in traits among individuals, if all traits are selectively neutral, or if the environment is stable and consistently favors all individuals equally. Additionally, if all individuals are equally successful in reproducing and passing on their genes, natural selection may not be operating in that population.
What kind of natural Selection would eliminate one extreme?
Directional selection
Why is genetic variation important for natural selection to drive evolution?
Genetic variation is important for natural selection to drive evolution because it provides the raw material for natural selection to act upon. Without genetic variation, there would be no diversity in traits for natural selection to favor or eliminate, and evolution would not be possible.
The highest rate of natural selection would probably occur when?
The highest rate of natural selection would likely occur when organisms are under extreme environmental pressures, such as rapid changes in climate or competition for limited resources. In these conditions, individuals with traits that offer a survival advantage are more likely to reproduce and pass on their genes, leading to rapid changes in the population.
What would be the consequences for evolution if there were no reproductive variation?
There would be no adaptive change due to natural selection and only genetic drift due to random events and gene flow due to population mixing would occur. Alleles would change, but without reproductive variation speciation could not occur.
