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Narrative:
Scientists in Russia carried out a selective breeding experiment with captive foxes. The scientists selectively bred foxes they identified as being the tamest, or most willing to interact with humans. The results were significant. Though scientists had previously assumed that it took thousands of years for dogs to evolve from wolflike and foxlike organisms, within fifty years the offspring of the original foxes became remarkably doglike, both physically and temperamentally.

Which conclusion can you draw from the paragraph?


Artificial selection is a much more rapid process than natural selection.

Artificial selection leads to more successful adaptive traits than natural selection.

Natural selection cannot lead to the same results as those of artificial selection.

Artificial selection created a new species that is neither a dog nor a fox.

The only difference between artificial selection and natural selection is scale of time.

Sagot :

sandlee09

The results of this experiment provide corroborating evidence to the claim that Artificial selection is a much more rapid process than natural selection.

Natural selection is the basis of the theory of evolution put forward by Charles Darwin. The idea of natural selection is key to our understanding of evolution and proposes a "survival of the fittest" kind of scenario in which :

  • Members of a population who possess a trait that is better adapted for survival will live longer to pass on said trait and evolve.
  • Members without the trait slowly die off over the generations, being less able to reproduce with each generational change.

Artificial selection on other hand, as the name implies, is not a natural process at all. It is instead a human-controlled version of the previously mentioned.

This method, also known as selective breeding, is when humans selectively breed individuals of a population who possess traits that we deem desirable. Some examples in which humans use selective breeding are:

  • Dogs
  • Horses
  • Pigs
  • Vegetables
  • Wheat

etc.

We use artificial selection or selective breeding to produce animals or food with desirable traits to humans, such as perhaps a horse whose longer legs allow it to travel further, or a pig who grows much bigger in a shorter amount of time.

This uses the same method as natural selection by reproducing the desired trait until only that version of the trait exists in the population.

However, this method does not need to wait for the opposing trait to die out over many generations, it can be isolated from the start, which means that Artificial selection is a much more rapid process than natural selection. We can conclude that the first conclusion is correct.

To learn more visit:

https://brainly.com/question/1516624?referrer=searchResults

View image sandlee09
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