2. Which of the following characteristics is unlikely due to sexual selection?
(A) Frog singing
(B) Spermcompetition
(C) Courtship dance
(D) Flower fragrance
(E) Chameleon Camouflage
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統計: A(0), B(7), C(0), D(2), E(26) #3086625
統計: A(0), B(7), C(0), D(2), E(26) #3086625