We can identify at least four factors that might have contributed to the Cambrian explosion. First, the oxygen level in our atmosphere may have remained well below its present level until about the time of the Cambrian explosion. Thus, the rapid diversification in animal life may have occurred ...
解析:第一段最后一句“This rapid origin and diversification of animals is often referred to as “the Cambrian explosion””意思是:如此迅速的动物起源和多样化被认为是“寒武纪大爆发”。 5. 根据第二段,以下哪项不是古生物学家对寒武纪大爆发提出的问题? (Negative Factual Information Question) a) 为什么...
The term “Cambrian explosion” refers to the geologically brief period during which all modern animal groups evolved. ●Little is known about the… ●While animal fossils… ●Although the reasons for the… Answer Choices ○Little is known about the stages of evolution during the Cambrian period,...
We can identify at least four factors that might have contributed to the Cambrian explosion. First, the oxygen level in our atmosphere may have remained well below its present level until about the time of the Cambrian explosion. Thus, the rapid diversification in animal life may have occurred ...
The term “Cambrian explosion” refers to the geologically brief period during which all modern animal groups evolved. ●1 ●2 ●6 Answer Choices 1. Little is known about the stages of evolution during the Cambrian period, in part because early animals were soft bodied and could fossilize only...
The Cambrian explosion: Sulphide rises to the occasion
The Cambrian Explosion解析：第四段提及的两个问题的作用，后面的段落对此进行解答（第五至第九段），因此选项
The Cambrian Explosion修辞目的题根据线性思维原则和就近原则往前看。发现了之前的these知道是顺逻辑中的分类举例。因此答案中的功能性关键词是正的。
The term "Cambrian explosion" refers to the geologically brief period during which all modern animal groups evolved. ● ● ● A.Little is known about the stages of evolution during the Cambrian period, in part because early animals were soft bodied and could fossilize only under particular condit...
题目:The Cambrian Explosion 内容回忆:本文共9段。第1段讲了生物的进化一般都比较慢,但是有一段时期生物的进化突然变的很快;第2段讲到科学家通过动物的basic body plan 来把动物分成不同的phyla,这个分类现在还在进行中,目前总共有30个不同的phyla。第3段讲到了寒武纪大爆发的来源,由于所有这30个不同的phyla同时...