Over the years, white mice became extinct and darker mice survived. This is

All the possible gene combinations in a population.

The extreme population phenotypes are favored by the environment.

Some insects are resistant to certain pesticides, chemicals that are sprayed on crops to keep the insects from eating them. The insects that have the resistant trait are not affected by the pesticides. This resistance trait can be passed to their offspring. The resistance to pesticides that some individual insects have is a result of-

A population of salamanders, 50% of whom were spotted, decreased from 500 to only 100 in just a few months when a drought dried up much of the lake they inhabit. The remaining population had a much higher frequency of spotted than non-spotted salamanders compared with the original population. The most likely cause for this change is -- 

61% accuracy: In rock pocket mice, for thousands of years the dominant fur color is lighter colored fur. Occasionally a mouse will be born with a change in the MC1R gene, which causes a darker fur color. This change is an example of a(n)...

Researchers studying medium ground finches on the island of Daphne Major in the Galapagos Islands collected the data below on the survival rates of finches with different sized beaks over a three-year period that included a drought.

Which statement about the finches in this environment is best supported by the data?

About 9,000-6,000 years ago, ancient people began to develop parviglumis teosinte into a crop that more closely resembles what we know today as corn. Its kernels started to grow without the tough shell, and humans domesticated this plant for its grain, changing the size and textures of the kernels. They accomplished this by selectively breeding parviglumis teosinte plants together that had larger and softer kernels so that this trait became more common in the next generation of plants. This is an example of...

Process by which closely related organisms develop differences due to living in different environments

Process by which unrelated organisms develop similarities due to living in similar environments

Theory suggesting eukaryotic cells evolved from larger prokaryotes that ingested smaller prokaryotes, forming symbiotic relationships.

Genetic diversity is decreased through this process.

Select the best answer based on the image.

Northern elephant seals have reduced genetic variation probably due to the effects humans inflicted on them in the 1890s. Hunting reduced their population size to as few as 20 individuals at the end of the 19th century. What evolutionary concept is displayed in this example?