試題詳解

34.
(A) They concluded that actual evolution is far less orderly than his conclusions have asserted.
(B) In actuality, however, these folds, which are properly known as pharyngeal grooves, possess no gill-like functions and instead developed into the lower jaw in most mammal species.
(C) In some cases, Haeckel’s suppositions were simply incorrect.
(D) At this point, however, other scientists began to push back Haeckel’s theory.