Matching
For each statement, select the graph that best represents the mode of selection described. 
Premises:
directional selection - the form of a trait at one end of a range of variation is adaptive.
distribution of traits in a population before selection occurs
stabilizing selection - extreme forms of a trait are eliminated, and an intermediate form is adaptive.
disruptive selection - a midrange form of a trait is eliminated, and extreme forms are adaptive.
Responses:
C
B
D
A
Correct Answer:
Premises:
Responses:
directional selection - the form of a trait at one end of a range of variation is adaptive.
distribution of traits in a population before selection occurs
stabilizing selection - extreme forms of a trait are eliminated, and an intermediate form is adaptive.
disruptive selection - a midrange form of a trait is eliminated, and extreme forms are adaptive.
Premises:
directional selection - the form of a trait at one end of a range of variation is adaptive.
distribution of traits in a population before selection occurs
stabilizing selection - extreme forms of a trait are eliminated, and an intermediate form is adaptive.
disruptive selection - a midrange form of a trait is eliminated, and extreme forms are adaptive.
Responses:
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