In a population of grasshoppers, some individuals are brown and others are green. Presently, both phenotypes are equally fit. What could happen to change the relative fitness
of the two phenotypes in the population? For example, what could cause brown individuals
to show increased fitness relative to green individuals?

Based on the graph, how is coal consumption likely to affect future generations? a. the higher our current rate of consumption, the less coal will be available in the future. b. current rates of consumption are irrelevant because new coal will form in the future. c. the lower our current rate of consumption, the more slowly coal will be replenished for the future. d. regardless of current rates of consumption, coal will always be available.