Contrast microevolution and macroevolution.

Microevolution , as the name suggests, is evolutionary change on a small scale, such as evolution or selection occurring on a single gene or a few genes in a single population over a short period of time. ... Macroevolution, in contrast, is evolutionary change on a large scale that happens over a longer period of time.

Microevolution can lead to macroevolution.

Microevolution refers to the formation of species through the process of speciation. The element responsible for this process is natural selection. In this process changes in the traits occur with time. Macroevolution refers to the development of major group of organisms from groups of species that are distinctly different. For example development of mammals from non-mammalian species or evolution of whales from terrestrial mammals.

Macroevolution refers to the large number of changes that occur in the characteristics of the living organisms, like the evolution of entirely new species from previously existing species. Macroevolution is the result of many  microevolution processes.

Therefore, microevolution can lead to macroevolution is the true statement.

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Explanation:

Micro evolution can lead to macro evolution

It's the first one I think

Wikipedia aswell can be used to solve the following questions

b is dominant over the allele for the white fur.