ANTH 1210: Chapter 6 questions with
verified solutions graded A+ passed
directional selection - correct answer ✔✔one extreme phenotype is favored at
the expense of all others
ex: peppered moths
normalizing selection - correct answer ✔✔stabilizes genetic variation in a
population where average phenotype has an adaptive advantage
ex: birth weight
diversifying/disruptive selection - correct answer ✔✔less common variants in a
population favoured at the expense of the most common phenotype
Gloger's rule - correct answer ✔✔populations of birds and mammals living in
warm, humid climates have more melanin than populations of the same species in
cooler, drier areas
Bergman's rule - correct answer ✔✔the smaller sized populations of a species
inhabit warmer parts of its geological range, the larger sized populations inhabit
cooler areas
Allen's rule - correct answer ✔✔the rule that protruing body parts are relatively
shorter in the cooler areas of a species and longer in the warmer areas
verified solutions graded A+ passed
directional selection - correct answer ✔✔one extreme phenotype is favored at
the expense of all others
ex: peppered moths
normalizing selection - correct answer ✔✔stabilizes genetic variation in a
population where average phenotype has an adaptive advantage
ex: birth weight
diversifying/disruptive selection - correct answer ✔✔less common variants in a
population favoured at the expense of the most common phenotype
Gloger's rule - correct answer ✔✔populations of birds and mammals living in
warm, humid climates have more melanin than populations of the same species in
cooler, drier areas
Bergman's rule - correct answer ✔✔the smaller sized populations of a species
inhabit warmer parts of its geological range, the larger sized populations inhabit
cooler areas
Allen's rule - correct answer ✔✔the rule that protruing body parts are relatively
shorter in the cooler areas of a species and longer in the warmer areas
