例句與造句

1. Another likely explanation for the loss of its eyes is that of selective neutrality and genetic drift; in the dark environment of the cave, the eyes are neither advantageous nor disadvantageous and thus any genetic factors that might impair the eyes ( or their development ) can take hold with no consequence on the individual or species.
2. It's difficult to find selective neutrality in a sentence. 用selective neutrality造句挺難的