阿摩線上測驗
32. A swim bladder is a gas-filled sac that helps fish maintain buoyancy. The evolution of the pattern is
(A) an evolutionary trend
(B) paedomorphosis
(C) exaptation
(D) adaptive radiation
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統計： A(0), B(0), C(0), D(1), E(0) #3389857
統計： A(0), B(0), C(0), D(1), E(0) #3389857
