Question

a mutation that causes resistance in a population of beetles is an example of ______. a. macroevolution b. microevolution c. migration d. reproduction please select the best answer from the choices provided

Explanation:

• Macroevolution refers to large - scale evolutionary changes over long periods, such as the formation of new species. A mutation causing resistance in a beetle population is a small - scale change within a population, not this.
• Microevolution is the change in allele frequencies within a population over time. A mutation that gives beetles resistance can change the allele frequencies (if the resistant beetles have a survival advantage), so this is an example of microevolution.
• Migration is the movement of individuals into or out of a population. The problem is about a mutation, not movement.
• Reproduction is the biological process of producing offspring. While reproduction is related to evolution, the key here is the change in the population due to a mutation (which is about allele frequencies, not just reproduction).

Answer:

B. microevolution