Question

Using the graphs below, which group of moths is better adapted to survive the hunting cycle?2 population graphs with Year on the x-axis from 0 to 5 and percent of total population on the y-axis from 0 to 100. Top graph: Light trees population increases from 50 percent to just under 75 percent. Dark trees population decreases from 50 percent to above 25 percent. Bottom graph: Light trees population decreases from 50 percent to 13 percent. Dark trees population increases from 50 percent to 85 percent.a.Light moths on light treesb.Dark moths on light treesc.Dark moths on dark treesd.Light moths on dark trees

Answer 1

In this case, we can see that light moths have a higher survival rate on light trees meanwhile dark moths have it on dark trees, on the contrary, if dark moths are on light trees or light moths on dark trees, we see a drastic drop on population numbers, so we could say that option a and option c are correct, however, if we look carefully at the graphs numbers we can see that light moths go from 50% to 75% an increase if 25% meanwhile dark moths go from 50% to 85% an increase of 35% so we can say that overall populations and conditions dark moths on dark trees are the most successful although we must nos forget that many factors interfere in populational numbers no just bark color or predation, nonetheless, the correct answer is letter c.