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Is natural selection a process or a result of a process?
Natural selection is only the result of changing environments, mutation and the variation resulting therein. Natural selection is the process of adaptive change and the main mechanism of evolution that leads to speciation. Natural selection is a process as mutation and variation are grist to the mill of natural selection.
The original source of genetic variation that serves as the raw material for natural selection is what?
Generally, mutation.
What causes the allele frequencies to changes?
1. Mutation 2. Migration (Gene Flow): both immigration and emigration. 3. Genetic Drift 4. Sexual Selection (Non-random mating) 5. Natural Selection: those most fit survive to pass on their genes to the next generation.
Why would natural selection not occur in population?
It has not reached carrying Capacity
Why is variation important for natural selection and what are the main sources of this variation?
Without variation natural selection would have nothing to select from that would confer survivability and reproductive success. on the organisms being selected against the organisms conspecifics and the immediate environment. Mutation and sexual recombination provide the main sources of this variation that is needed to make selection work. Mutation is the variation presented that causes the real adaptive change that can lead to speciation.
What are genetic mutation and natural selection?
Together, genetic mutation and natural selection determine in what 'direction' evolution proceeds.
What comes first mutation or natural selection?
Natural selection can only work on genetic variation that already exists. So mutation comes first, then natural selection.
Is natural selection a process or a result of a process?
Natural selection is only the result of changing environments, mutation and the variation resulting therein. Natural selection is the process of adaptive change and the main mechanism of evolution that leads to speciation. Natural selection is a process as mutation and variation are grist to the mill of natural selection.
What is essential in any model of natural selection?
Mutation.
What can cause natural selection to go faster?
mutation
Which type of selection tends to increase genetic variation?
Natural Selection.
The original source of genetic variation that serves as the raw material for natural selection is what?
Generally, mutation.
What two factors are responsible for evolution?
Mutation and natural selection.
What variations do natural selection depend on?
They depend on natural variation in traits due to mutation.
Do animals change from natural selection?
Sure, mutation would be one way.
What are the influences of evolution?
genetic drift, gene flow, mutation, natural selection and nonrandom mating ( sexual selection ).
What are the 4 mechanisms by which evolution can occur?
genetic drift, mutation, natural selection, and migration
