19. Which factor and mechanism regulates population growth in negative feedback manner typically so that population growth may follow the logistic growth model?
(A) earth quakes； density-dependent
(B) infectious disease； density-dependent
(C)competition for resources； density-independent
(D) toxic wastes； density-independent
(E)toxic wastes； competition for resources
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題目解析 此題主要探討影響生物群體增長...
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