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"Why do organisms with close biochemical similarities show stronger evolutionary relationships?

a. They have varied and different ancestry.
b. They have similar pattern during their early stage of development.
c. They have a common ancestor and have the same kind of proteins.
d. They possess same vestigial structure that made their evolutionary relationship closer."


Letter C they have common ancestor and have the same kinds of proteins.
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yes because of similarities of amino acid sequnces and similarities of bio chemical levels may suggest that organisms have related to each other and probably share commin ancestors.
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