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How might a comparison of the anatomy of two closely related animals such as lizards and snakes provide information about their evolutionary history?
A greater number of shared traits would mean they recently diverged from a common ancestor.
The anatomical differences between them would indicate which evolved from the other.
Physical traits shared between them would explain how they evolved in parallel, without relation.
Shared traits would indicate they must have a close relative in common.
I think Either D or A