Question

1 The Correlated trait exercise shows that. A) when two characters are correlated, selection always favors larger values of both or smaller values of both B) When two characters are correlated, one of them can evolve toward higher values even if smaller values are better for survival C) when two characters are correlated, selection is always strong on both or weak on both D) when two characters are correlated, the optimal values and selection strengths rise and fall together

2 In the mountain and valley exercise which of the following parameters had the largest influence on whether the finch population evolved bimodal distribution?

A) the speed at which the model ran

B) the difference is carrying capacity between the wet vs dry sides of the island

C) the number of chicks each pair of parent produced each year

D) How far the birds flew when looking for mate

Answer 1

1. The correct answer is Option D. When two characters are correlated, the optimal values and selection strengths rise and fall together.

2. The correct answer is Option B. The difference is carrying capacity between the wet vs dry sides of the island.