Answer:
A population bottleneck occurred, altering the resulting allele frequencies.
Explanation:
A population bottleneck occurs when the size of a population is reduced by at least a generation. In this case, genetic drift acts more quickly to reduce genetic variation in small populations, but going through a “bottleneck” can greatly reduce variation, even if the bottleneck does not last for many generations. This effect called a bottleneck usually happens when a major disaster occurs in the population's habitat, changing the allelic frequencies and even the genetic variability of the population.
The population bottleneck can be seen in the question above, where after a forest fire, only 20 beetles remain in a population of beetles. 18 of them are green and 2 of them are brown.
Analogous structures are structures with different evolutionary ancestries but they have the same function. Examples include; wings of birds, insects and bats. On the other hand homologous structures have similar ancestries and common traits but may not have the same function in an organism. Well; in the above question Human apes have five fingers they can use to grasp objects, which i think these are homologous structures.
My best guess would be because it relates to it so they need to do there best work so they would need all the info of that and any surrounding topic to get the most accurate information
