18 Which of the following situations leads to microevolution?
(A)An individual bird has a beak of a particular size that grows larger during a drought.
(B)Mutations in muscle cells are transferred to the next generation.
(C) Alleles move between populations that differ in allele frequencies.
(D) All individuals within a population have the same allele at a particular locus.
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統計: 尚無統計資料
統計: 尚無統計資料