阿摩線上測驗
27.Islands provide ideal opportunities to study speciation because?
(A) Natural selection occurs
more rapidly；
(B) They are very large with diverse populations；
(C) Organisms cannot easily
immigrate and emigrate；
(D) The organisms have little competition and do not change.
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統計： A(1), B(1), C(6), D(1), E(0) #3325433
統計： A(1), B(1), C(6), D(1), E(0) #3325433
