Question Detail

ZOO 102 Foundations of Animal Systematics and Phylogeny Objective Question
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Question

What does a 'node' on a phylogenetic tree represent?
Options
A A present-day species
B An inferred common ancestor of the connected branches
Correct Answer
C The very first organism to ever exist
D A period of mass extinction
Correct Answer

Option B is the correct answer.

Detailed Explanation

A node is the connecting point where two branches meet, representing a common ancestor. Present-day species are represented by the terminal taxa at the ends of branches.

Hint

It's the intersection where a lineage splits.

Question Info

Course: ZOO 102
Topic: Foundations of Animal Systematics and Phylogeny
Type: Objective
Difficulty: Not specified
Question 188 of 737
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