1. Were the bones with the same name in similar places on both the elephant and rat
skeleton? Explain
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2 Did either the ratar slephant skeleton seem to have extra bones? Explain
3. Similar structures in the anatomy of two different species are called homologies. What
homologies are shared by rats and elephants?
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4. What features would you look for in a fossil to determine if the now-extinct organism was
related to a rat and an elephant?
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How can patterns be used to identify common ancestry?