12. Gene flow is a concept best used to describe an exchange between _____.
(A) species
(B) males and females
(C) populations
(D) individuals
(E) habitats
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統計: A(17), B(2), C(55), D(6), E(0) #938252
統計: A(17), B(2), C(55), D(6), E(0) #938252