Cows have been breed over the years by turkey farmers to produce more milk.Some cows produce so much milk,that their enlarged udders make it difficult for the cows to walk.The increased milk production of the cows is an example of

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The increased milk production of cows is an example of artificial selection because turkey farmers have selectively bred cows with the desired trait of producing more milk, resulting in cows with enlarged udders that may even impair their ability to walk. This has been done intentionally by humans, rather than through natural or sexual selection. Option A, recombinant DNA engineering, refers to the process of creating new genetic material through laboratory manipulation and does not apply here. Option B, natural selection, occurs naturally in the wild as organisms with advantageous traits are more likely to survive and pass on their genes, but it is not relevant to the selective breeding of cows for milk production. Option D, sexual selection, refers to the process by which certain traits are favored in mate selection, but again, this is not relevant to the breeding of cows for milk production. Option E, animal cruelty, is not a scientific concept and is not relevant to this question.

Cows Have Been Breed Over the Years by Turkey Farmers