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Without the heritability of individual traits what difference would it make if the individual was selected. An individual that has a germ line mutation, say, and this mutation could confer survivability and reproductive success on progeny thus passes this mutation to said offspring is selected. Then evolution, the change in allele frequency over time in a population of organisms, could take place. Heritability is all as individuals are selected but populations evolve.
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What are the 3 ingredients for natural selection to occur?
Genetic variation that can be acted on by environmental pressure. Reproductive population that results in more organisms than can be supported by the ecosystem resulting in competition for limited resources, the ability of the organism to transmit genetic information to the next generation.
Which does natural selection affect populations or individuals?
Populations evolve, but individuals are selected. Natural selection affects individual organisms.
How does environmental pressure affect natural selection?
When nothing happens to exert strong population pressure on that population, natural selection favors the allele frequency already present. When mutations cause new traits, natural selection weeds these traits out because they're not as efficient as the others.
Adaptation which allows for natural selection is called?
Adaptation does not allow for natural selection: natural selection causes adaptation.
What influences natural selection?
Mostly natural selection depends on the environment
What are the 3 ingredients for natural selection to occur?
Genetic variation that can be acted on by environmental pressure. Reproductive population that results in more organisms than can be supported by the ecosystem resulting in competition for limited resources, the ability of the organism to transmit genetic information to the next generation.
List the three conditions that are necessary and sufficient for natural selection to act on a?
A beneficial mutation leading to variability in a population and the heritability of those beneficial traits.
Which natural gender selection works best?
It appears it does not matter to genes what sex they are in as heritability of favored alleles is is transmissible by both sexed strategies for reproduction equally.
What two factors are required for a character or trait to change over time in population which is adapting through natural selection?
The two factors required for a character of trait to change over time through natural selection are heritability of the trait and a differentiation of fitness between traits.
How does selection affect natural selection?
Organisms are affected by Natural Selection because Inherited characteristics affected the likelihood of an organism's survival and reproduction.
Describe darwin's theory of natural selection as the mechanism of evolution?
Short and sweet description. Natural selection is the nonrandom survival and reproductive success of randomly varying organisms. Variation. Struggle for existence. Selection. Heritability of traits. Adaptation of populations to environment. Leading to allele frequency change in populations over time; evolution.
Which does natural Which does natural selection affect?
natural selection is basiclly only the strong survive which means it effects the weak by killing them but bernifits the strong
How could natural selection affect the songs that birds sing?
Through ongoing natural selection a population adapts to its enviroment
How does natural selection affect survival?
Natural selection is the process which determines the shark's evolution. It is humankind that is threatening the sharks' survival.
Which does natural selection affect populations or individuals?
Populations evolve, but individuals are selected. Natural selection affects individual organisms.
Does natural selection affect the survival of an individual or a species?
species
Does natural selection affect individuals populations or both?
Both
