Biology

The correct answer is: B.They change over time.

Explanation:

According to the Hardy-Weinberg principle, natural selection causes changes in allele frequencies over time. This is because individuals with advantageous traits (alleles) are more likely to survive and reproduce, passing those alleles on to the next generation. As a result, allele frequencies in the population will shift over generations, leading to evolution.

The other options are incorrect because:

A.They ev...