Question Detail

ZOO 102 Foundations of Animal Systematics and Phylogeny Objective Question

Question

What is the significance of the 'root' in a phylogenetic tree?
Options
A It represents the common ancestor of all members in the tree
Correct Answer
B It signifies the most recent species to evolve
C It marks the point of the most recent speciation event
D It represents a group that has gone extinct
Correct Answer

Option A is the correct answer.

Detailed Explanation

The root is the base of the tree and represents the common ancestor of every group included in that diagram. Recent species are found at the tips, not the root.

Hint

It's the very beginning of the tree.

Question Info