【单选题】In prehistoric times brachiopods were one of the most abundant and diverse forms of life on Earth: more than 30,000 species of this chainlike creature have been cataloged from fossil records. Today br...
A.
rejecting an earlier explanation for the longevity of certain brachiopod species
B.
reevaluating the implications of uniformity among existing brachiopod species
C.
describing the varieties of environmental change to which brachiopods are vulnerable
D.
reconciling opposing explanations for brachiopods' lack of evolutionary success
【单选题】Notwithstanding its great diversity of styles, forms, themes, and functions, the theatre of today has its roots in a basic need to give meaning to the workings of the universe.