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disruptive selection.

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The two different extreme variations in a trait are favored in?

The two extreme variations in a are trait are favored in disruptive selection.


What modes of selection leads to a reduction in variation but no change in the mean?

Stabilizing selection is the mode of selection that can lead to a reduction in variation without changing the mean of a trait. In this type of selection, extreme phenotypes are selected against, while intermediate phenotypes are favored, resulting in a narrower range of phenotypic variation but maintaining the same mean.


What resulted from a genetic variation that was favored by natural selection?

The genetic variation that was favored by natural selection led to the increased frequency of the advantageous trait in a population over time, resulting in adaptation to the environment. This can lead to improved survival and reproductive success for individuals carrying the advantageous variation.


A bell shaped curve of phenotypic variation is a representation of?

A bell shaped curve of phenotypic variation is a graphical representation of the distribution of a trait within a population. It shows that most individuals in the population have an average value for the trait, with fewer individuals on the extreme ends of the spectrum.


What is natural selection that acts against one type of extreme form of a polyygenic trait to reduce genetic variation and change the average value of a trait within a population called?

Stabilizing selection is the type of natural selection that acts against extreme forms of a polygenic trait to reduce genetic variation and maintains the average value of the trait within a population. It favors the intermediate phenotype, leading to a narrowing of the range of variation for that trait over time.


Are all different types of traits the result of adaptation.explain?

No. You are describing what is called Lamarckism. Different traits are the results of the alleles found in genes. The environment does push one trait over another if the environment becomes extreme. You will see many traits in a population (such as in a human population) but one is not favored unless that trait allows those that have it to do better.


What are the different types of natural selection and how do they impact the evolution of species?

There are three main types of natural selection: directional selection, stabilizing selection, and disruptive selection. Directional selection occurs when one extreme trait is favored over others, leading to a shift in the population towards that trait. Stabilizing selection favors the average trait, reducing genetic variation in a population. Disruptive selection favors extreme traits, leading to the divergence of a population into two distinct groups. These types of natural selection impact evolution by influencing which traits are passed on to future generations. Over time, they can lead to the adaptation of species to their environment and the emergence of new species.


Directional selection tends to eliminate?

Directional selection tends to eliminate individuals at one extreme of a trait spectrum, favoring those at the opposite extreme. Over time, this can lead to a shift in the average value of the trait within a population.


Which of the following resulted from a genetic variation that was favored by natural selection?

The development of antibiotic resistance in bacteria is a result of genetic variation that was favored by natural selection. Bacteria that had a mutation making them resistant to antibiotics were able to survive and reproduce, passing on this trait to future generations. Over time, this led to the prevalence of antibiotic-resistant strains in bacterial populations.


How does variation lead to natural selection?

If all individuals in a species are not exactly clones of each other but have small variations in the genes (traits), some will do better when the environment changes. These traits will be "favored" over other traits. More individuals will be found with the trait.


What is the difference in the same trait called?

The difference in the same trait is called variation.


A trait is a variation of a particular character?

true