The answer is A. random gene pool changes in small population.
In the hierarchy of biological classification, the subgroup that come after genus is specie.
The hierarchy in descending order is this: kingdom, phyllum, class, order, family, genus and species.
Answer: Companies are cutting down trees to make space for factories and produce paper products.
Explanation: when people finish using paper products they throw them away and the paper products get burned, and that produces carbon dioxide