22. Similar species can coexist in a community because of _____.
(A) resource partitioning
(B) allopatric competition and sympatric competition
(C) allopatric competition
(D) sympatric competition
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統計: A(19), B(3), C(2), D(3), E(0) #3321045
統計: A(19), B(3), C(2), D(3), E(0) #3321045