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The Living World 8th Edition by George Johnson
النسخة 8الرقم المعياري الدولي: 978-0078024214The Living World 8th Edition by George Johnson
النسخة 8الرقم المعياري الدولي: 978-0078024214 تمرين 14
When Kettlewell released equal numbers of light colored and dark melanic moths in the industrial areas near Birmingham and later recaptured moths there,
a. he recaptured only melanic moths.
b. he recaptured a greater percentage of dark moths than light moths.
c. he recaptured a greater percentage of light moths than dark moths.
d. he recaptured equal proportions of dark and light moths.
On large, black lava flows in the deserts of the southwestern United States, populations of many types of animals are composed primarily of dark individuals. By contrast, on small lava flows, populations often have a relatively high proportion of light-colored individuals. How can you explain this difference?
a. he recaptured only melanic moths.
b. he recaptured a greater percentage of dark moths than light moths.
c. he recaptured a greater percentage of light moths than dark moths.
d. he recaptured equal proportions of dark and light moths.
On large, black lava flows in the deserts of the southwestern United States, populations of many types of animals are composed primarily of dark individuals. By contrast, on small lava flows, populations often have a relatively high proportion of light-colored individuals. How can you explain this difference?
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In this question, we discuss the juxtapo...
The Living World 8th Edition by George Johnson
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