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Ecology › ViewThe environment around Manchester, England, changed during the Industrial Revolution. How did this change affect peppered moths living in the area?
A. Natural selection favored moths with dark wings because predators could not see them on the soot-colored trees.
B. Natural selection favored moths with white wings that were easy for predators to see.
C. Natural selection favored moths with white wings because predators could not see them on the soot-colored trees.
D. Natural selection caused moths with white wings to become extinct.
Meiosis and intro to Genetics › View
Colorblindness is a sex-linked recessive disorder. A normal woman whose father was colorblind marries a man with normal color vision. What percentage of their sons will be colorblind?
A. 0%
B. 25%
C. 50%
D. 100%