Passage IV
Because amphibian eggs lack a hard outer shell, their DNA can be damaged by exposure to ultraviolet (UV) radiation in sunlight. Table 1 lists the egg-laying behavior of 7 amphibian species and the species’ relative ability to repair DNA damage caused by exposure to UV radiation.
Figure 1 shows the percent of eggs that survived to hatching in the lab for these 7 species after exposure to unfiltered sunlight or to sunlight from which the UV radiation had been filtered out.
Figure 2 shows predicted UV levels over time in 4 geographic regions that have amphibian populations.
19. Based on the information in Figure 1, eggs from which species are most likely to survive prolonged exposure to sunlight?
Your Answer is
Correct Answer is D
Explanation
Look at figure 1, after Species G is exposed to sunlight, the hatching rate is still the highest