Passage I
In a study of fur pigmentation in deer mice, Peromyscus polionotus, scientists compared the brightness of the fur of mice from populations located different distance directly inland from a coastal site. Figure 1 shows 2 facial regions and the 2 body regions at which the fur of each mouse was evaluated (on a scale from 0 to 1.00) with respect to its brightness. Figure 1 also shows how, for each of the 4 regions, average relative brightness varied with inland distance.
Figure 2 shows how the average brightness of surface soil samples, given as the average percent relative reflectance, varied with inland distance.
4. Based on Figure 1, on average, was the fur pigmentation on the ventrum of P. polionotus lighter or darker 150 km inland than it was at the coastal site?
Your Answer is
Correct Answer is J
Explanation
Looking at the lower right ventrum in figure 1, the brightness of the vertical coordinate corresponding to the abscissa inland distance of 150 km is obviously lower than the brightness of the abscissa of 0 km, so choose darker