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【单选题】Rare FossilRecord The preservation of embryos and juvenilesis a rare occurrence in the fossil record.The tiny,delicate skeletons areusually scattered by scavengers(食腐动物) weathering beforethey can...
A.
The first paragraph describes a place while the second paragraph describes a field of study.
B.
The first paragraph defines the terms that are used in the second paragraph.
C.
The second paragraph describes a specific instance of the general topic discussed in the first paragraph.
D.
The second paragraph presents information that contrasts with the information given in the first paragraph.