Which of the following is true of the environments in which fossils are found? Which of the following is LEAST likely to be fou

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问题 Which of the following is true of the environments in which fossils are found?
Which of the following is LEAST likely to be found as a fossil, assuming that all are buried rapidly?

选项 A、A worm.
B、A shark.
C、An elephant.
D、A human ancestor.

答案A

解析 事实细节题。文章第二段前三句指出"化石的出现需要一个有利于有机体生长及死后保存的环境。这一环境中几乎总出现两种情况:第一,不管是机体的内部还是外部结构,要有硬体组织,例如骨骼、牙齿、头盖骨、外壳及木头,;在机体其他部分腐烂后,这些部分保留了下来。那些缺少硬体组织的有机体,诸如蠕虫和水母在地质学上极少有记载"。由此可知,worm(蠕虫)由于缺少硬体组织,最不可能以化石的形式保存下来。
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