Darwin's assumption that living forms must be descended from extinct forms was based on ________ evidence.
A)anatomical
B)biochemical
C)fossil
D)biogeographical

Name: Darwin's assumption that living forms must be descended from extinct forms was based on ________ evidence. A)anatomical B)biochemical C)fossil D)biogeographical
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Darwin's assumption was primarily based on fossil evidence, which showed that extinct species had similarities to living species, suggesting a lineage of descent.

Darwin's Assumption That Living Forms Must Be Descended from Extinct