問題詳情

43. According to the passage, what triggers the gender change in the blackspot angelfish?
(A) Dangers to the group.
(B) Changes in the fish’s diet.
(C) The birth of young angelfish.
(D) The death of the male fish in a group.

參考答案

答案:D
難度:非常困難0
統計:A(1),B(0),C(0),D(0),E(0)

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