Overfishing would lead to a bottleneck effect, as large numbers of fish are removed from a fish population. Population size has a major effect on the amount of genetic diversity. The greater the population, the greater genetic diversity. Due to overfishing, the population would become smaller, which would reduce genetic diversity. So the answer is B.
One example of passive transport is diffusion, when molecules move from an area of high concentration (large amount) to an area of low concentration (low amount). Molecules are said to naturally flow down their concentration gradient
In exothermic reactions, the products have higher energy than the reactants, and in endothermic reactions, the reactants have higher energy than the products.
