Question

Which event indicates that evolution has occurred?

O Beavers gain significant weight in preparation to survive winter.
O The population of moose in an area experiences a drastic decline.
The frequency of the brown coat allele in a wolf population decreases.
O The leaves on many trees change color and fall off in autumn.

Answer 1

The frequency of the brown coat allele in a wolf population decreases."

Step-by-step explanation:

Evolution is defined as a change in the genetic composition of a population over time. When the frequency of a particular allele (variation of a gene) changes in a population over generations, it indicates that evolutionary change has occurred. In the given scenario, the decrease in the frequency of a brown coat allele in a wolf population indicates that some factor, such as environmental pressure or random mutation, is leading to certain traits becoming more or less common in the population over time.