本题目来源于试卷: HL Topic A3.2 Classification and cladistics，类别为 IB生物学
[问答题]
5. The diagram below shows the evolutionary relationship between invertebrates.[img]data/attachment/exam/2501/24/2501241156488558.jpg[/img]Use an example from the diagram to explain the meaning of the following terms.
II.Node
参考答案: A node is a point where a split occurs.
A node represents an ancestor that gives rise to two or more branches.
The node labelled Arthropoda gave rise to two branches.
本题详细解析:
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