13. Optimal foraging as a form of efficient behavior would be favored by _____.
(A) mutualism
(B) transduction
(C) energy expended
(D) natural selection
(E) none of these choices are correct
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統計: A(8), B(1), C(28), D(37), E(1) #938253
統計: A(8), B(1), C(28), D(37), E(1) #938253