Multiple Choice
Based on the figure above,the two roots (labeled) represent which of the following?
1) Ancestral populations
2) A common ancestor of birds and crocodilians
3) A common ancestor to all tetrapods
4) The ancestral lineage from which all other lineages on the tree are derived
A) 1 and 2
B) 1 and 3
C) 3 and 4
D) 1,2,3,and 4
Correct Answer:

Verified
Correct Answer:
Verified
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