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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 else can I help you with?
What is Favorable mutations?
A helpful change to someones body that not man people have.
How does mutation and natural selection operate together in the process of evolution?
Under natural selection, not all genes are successful, but those which are will progress to the next stage of selection. Mutations introduce new genetic information to an organism's genetic code, providing more genotypes to create more phenotypes, which can be acted on and potentially more suitable ones to be selected.
How can Darwinain evolution be true if more than 99 percent of genetic mutations are retrogressive?
Darwinian evolution works very slowly over hundreds of generations. Though 99percent of mutations may be lost through natural selection the remaining 1 percent positive mutations will eventually, given sufficient time, improve the fit of the species to it's environment.
Why mutations can be helpful to a species?
Mutations can introduce new genetic variations into a population, which can drive evolution by providing diversity for natural selection to act upon. This diversity can lead to individuals with advantageous traits better suited to their environment, ultimately enhancing the species' ability to survive and reproduce.
Explain how mutations variation adaptation are related to each other?
Mutations are changes in the DNA sequence that lead to genetic variation. This variation can provide the raw material for adaptation, which is the process by which a population becomes better suited to its environment over time. Mutations contribute to genetic diversity, which can drive natural selection and ultimately lead to adaptation.
Why are mutations and conjugation important for natural selection in prokaryotes?
Becauase they need to adapt to the new environment to enter the bodies
Natural selection is due to?
beneficial mutations
Which mutations are NOT subject to natural selection - lethal physiological neutral or morphological?
Neutral mutations confer no benefits or handicaps and are therefore not affected by natural selection.
How does slow change over time occur genetically?
Through mutations in DNA, and natural selection of advantageous mutations.
Are new alleles made by natural selection?
No - natural selection does not create new alleles. Variation in alleles needs to exist in the population in order for natural selection to occur. Natural selection will involve the change in allele frequencies over time, but it does not create new alleles. New alleles are the result of mutations.
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 is the selective agent in natural selection?
They are the selective agent in natural selection ;)
Is natural selection a source of variation within species?
No, natural selection does not create variation within a species. Instead, natural selection acts on existing variations within a population, favoring traits that increase an individual's chances of survival and reproduction in a given environment. The variation itself arises from mechanisms such as mutations, genetic recombination, and gene flow.
What is the name for the process in which the organisms best adapted to their environment survive?
Its NaTuRaL sElEcTiOn if you didn't know.
How do mutations relate to natural selection?
Mutation, a copying error in the replication of DNA, can give rise to variation in an organisms phenotype and if this new phenotype is beneficial to survival and reproductive success ( as little as 1% ) it will be selected naturally against the immediate environment, then if this so selected organism leave many descendents with the same beneficial traits then the populations gene pool will change in allele frequency and you have evolution. ( a 19th century sentence Darwin would be proud of! )
What is the name for the process that causes a species to evolve?
Evolution is enabled by natural selection: the ability of a species through its individuals to make long-term improved changes in its response to its environment through beneficial mutations, resulting in the species being able to reproduce itself more successfully than before.
The process by which individuals that are better adapted to their environment are more likely to survive and reproduce is called?
natural selection
