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Natural selection leads to changes in both the physical appearance and what of a species?
Wiki User
∙ 13y ago
And changes in allele frequency of populations; genes in genomes.
Also in the behavioral repertoire of species.
Wiki User
∙ 13y ago
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What is the mechanism that allows organisms to evolve?
1) Natural Selection 2) Climate changes 3) Geographical events 4) Radiations of organism into new habitats 5) Changes in ecosystem 6) Changes in continental position Above are mechanisms of selection, the environment, basically. Mechanisms of evolution are; mutation, gene flow. genetic drift and most importantly for adaptive changes, natural selection
Physical change of a green plant?
The physical changes that happen in green plants are the changes in appearance. The difference between a sprout and a full grown plant is a physical change.
Natural selection causes changes in populations of organisms not individual organisms because?
differential reproductive success caused by genetic variation is necessary for the process of natural selection.
What are the pressures of natural selection?
Everything from available food to climate will cause the changes we see in natural selection. Random mutations occur constantly and when those mutations are beneficial for life, the genetic code is more likely to be passed on to future generations.
What does Survival of the fittest and natural selection mean?
Survival of the fittest is a not quite accurate phrase for natural selection. Natural selection is, The non-random survival and reproductive success of randomly varying organisms.
Which physical changes occur in organisms which allow them to be better suited to live in a certain environment?
natural selection is part of this
How is natural selection important?
Natural selection is important because it changes the way we cope(live) in our enviornment.
Is eviromenntal changes drive reprodution a natural selection?
Environment IS natural selection, so a change in environment is a change in selection pressure.
What will produce adaptive changes in populations?
Natural selection
In a physical change a substance changes its but not its identity.?
Appearance
Why are most physical changes reversable?
Most physical changes are reversible because the changes only occur in in the appearance. =)
Can natural selection act upon body shape?
Yes, that would be called the Homologous structure, and that changes in natural selection.
Are changes in allelic frequency driven by natural selection?
False
How evolution by natural selection brings about changes in a species?
i am not meber
Does natural selection on single-gene trait cannot lead to changes in allele frequencies?
Natural selection on a single-gene trait can lead to changes in allele frequencies for the alleles of that gene.
How can you recognize physical and chemical changes?
A physical change is when a new substance is formed. It changes the appearance. A chemical change affects the composition.
Is whipping cream for a cake a chemical or physical change?
physical; it changes only in appearance, not chemical structure :)
