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Evidence for Common Ancestry
Worksheet
Grade Level
Biology
10.73 Evidence for Common Ancestry
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Why is agreement between a fossil sequence and a DNA-based phylogeny especially powerful evidence for common ancestry?
A
Fossils and DNA must always produce identical numerical dates.
B
The two independent evidence lines make the same branching-history explanation more likely.
C
DNA is useful only when fossils are completely absent.
D
Fossil evidence cancels molecular evidence because they are different data types.
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