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9. A finch population has genetic diversity. Some of the finches have an allele that gives them longer beaks. Due to pollution, the ecosystem changes, and seeds become harder to find. The finches with long beaks can dig the seeds out more easily than the finches with short beaks.

a) Which type of bird is selected for in the polluted ecosystem?

b) How will the allele frequency change in the finch population?

c) Is this an example of natural selection? Explain.

Answer :

Answer:

A) the finch with the longer beak

B) the allele will continue to become more prominent as the smaller beak birds die off

C) Yes, the birds with the longer beaks will continue to live on because the birds with the smaller beaks can’t find the seeds as easily.

Explanation:

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Rewritten by : Barada

Seeds are harder to find, so finches with larger beaks get selected in a polluted environment. This is a natural selection. If this continues, then the alleles for short beak will vanish.

What is natural selection?

Natural selection is a process in which nature selects an organism that can fit well. If an allele is selected in a population and present for a longer time, then it replaces other alleles in that population. Example: In a population, both short-beaked and long-beaked finches are present.

Due to pollution, long-beaked finches are able to find more seeds than short-beaked finches. Here, nature favors long-beaked finches over short-beaked finches. If this continues for a longer generation, then alleles for the short beak will vanish. Only alleles for long beaks will be in the population.

Hence, long-beaked finches are selected. It is an example of natural selection. The allele frequency of the long beak will increase while decreasing for the short beak.

To learn more about natural selection, refer to the following link:

https://brainly.com/question/12086252

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