Biology

The correct answer is A. Gene Flow.

The scenario described, where a green rhinoceros beetle leaves its group and mates with a group of red rhinoceros beetles, is an example of gene flow.

Gene flow refers to the transfer of genetic material, including alleles, from one population to another. It occurs when individuals migrate or move between populations and interbreed with members of the other population.

In this case, the green rhinoceros beetle leaving its group and mating with the red rhinoceros beetles introduces its genetic material, including green beetle alleles, into the group of red beetles. The interbreeding between the two groups leads to the exchange of genetic material and the mixing of traits between the populations.

Option B, genetic drift, refers to the random changes in allele frequencies that occur in a population due to chance events. The scenario does not...