TOEFL Listening: TPO-TOEFL阅读TPO - O1J53GF5KKHDN56UN$

Select the TWO answer choices that are true statements based upon the discussion of the principle of faunal succession in paragraph 5. To receive credit, you must select TWO answers. A. It was a principle that applied to fauna but not to flora. B. It was discovered independently by two different geologists. C. It describes how fossils are distributed in rock strata. D. It explains why plants and animals undergo transformations through time.