Question

read the passage below and answer the question(s) that follow. banded snails, found in central europe, are small - to medium - sized snails that are members of the helicidae family. their shells are found in a range of colors and patterns, from yellow to dark brown and from no bands (or stripes) to five bands. image 1 shows an example of a banded snail with five bands. banded snails are prey to several bird species, including the song thrush. the color and pattern of the bands are linked to genetics and heredity, and follow the mendelian rules of inheritance. in addition, snails with lighter - colored shells have a lower body temperature than those with darker - colored shells. in some areas, snails with many different colors and band patterns are found. in other areas, certain shell colors or patterns are more common. graph 1 shows the percentages of snails with different shell color and band patterns found in different habitats. part a use graph 2 and figure 1 to answer the question. which statement best predicts how yellow - banded snails will be affected if the trends shown in graph 2 continue? a yellow - banded snails will migrate from northern regions to southern regions. b yellow - banded snails will migrate from higher elevations to lower elevations. c yellow - banded snails will be found in a much wider range than they were historically found. d yellow - banded snails will become more common in areas that have historically cooler temperatures.

Explanation:

The passage mentions that in some areas, snails with lighter - colored shells have a lower body temperature than those with darker - colored shells. If temperatures change, yellow - banded snails (which likely have lighter - colored shells in general) may be affected in terms of their distribution. Given that cooler temperatures are associated with lighter - shelled snails, if temperatures change, yellow - banded snails will become more common in areas that have historically cooler temperatures.

Answer:

D. Yellow - banded snails will become more common in areas that have historically cooler temperatures.