ncreased, while light peppered moths decreased in London. Higher emissions of industrial pollutants caused tree bark to become coated with soot over time, making the darker-colored moths less visible to avian predators. Ecologists studied the moths present on the bark of trees and noted their body colors over a period of 150 years, and the results are shown in the graph below. Based on the information shown in the graph, which statement best explains the changes in moth populations following industrialization? * 100 80 60 Preindustrial 40 1800 1850 1900 1950 Postindustrial Year Within the overall moth population in London, dark-colored moth numbers decreased while light-colored moth numbers increased. Within the overall moth population in London, dark-colored moth numbers increased while light-colored moth numbers decreased. Within the overall moth population in London, dark-colored moth nur colored. moth numbers remained relatively unchanged over time. ers and light- Within the overall moth population in London, dark-colored moth numbers decreased Percent Moths Surveyed 20

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Following the Industrial Revolution, populations of dark peppered moths
increased, while light peppered moths decreased in London. Higher emissions
of industrial pollutants caused tree bark to become coated with soot over time,
making the darker-colored moths less visible to avian predators. Ecologists
studied the moths present on the bark of trees and noted their body colors over
a period of 150 years, and the results are shown in the graph below. Based on
the information shown in the graph, which statement best explains the changes
in moth populations following industrialization?"
100
80
60
Preindustrial
40
20
1800
1850
1900
1950
Postindustrial
Year
Within the overall moth population in London, dark-colored moth numbers decreased
while light-colored moth numbers increased.
Within the overall moth population in London, dark-colored moth numbers increased
while light-colored moth numbers decreased,
Within the overall moth population in London, dark-colored moth numbers and light-
colored moth numbers remained relatively unchanged over time.
Within the overall moth population in London, dark-colored moth numbers decreased
following1850 and light-colored moth numbers remained relatively unchanged during
the same time period
Percent Moths Surveyed
Transcribed Image Text:Following the Industrial Revolution, populations of dark peppered moths increased, while light peppered moths decreased in London. Higher emissions of industrial pollutants caused tree bark to become coated with soot over time, making the darker-colored moths less visible to avian predators. Ecologists studied the moths present on the bark of trees and noted their body colors over a period of 150 years, and the results are shown in the graph below. Based on the information shown in the graph, which statement best explains the changes in moth populations following industrialization?" 100 80 60 Preindustrial 40 20 1800 1850 1900 1950 Postindustrial Year Within the overall moth population in London, dark-colored moth numbers decreased while light-colored moth numbers increased. Within the overall moth population in London, dark-colored moth numbers increased while light-colored moth numbers decreased, Within the overall moth population in London, dark-colored moth numbers and light- colored moth numbers remained relatively unchanged over time. Within the overall moth population in London, dark-colored moth numbers decreased following1850 and light-colored moth numbers remained relatively unchanged during the same time period Percent Moths Surveyed
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