I assume you are referring to structures that are left over and serve no apparent purpose. These are called vestigial structures.
Phylogeny.
If I remove the battery of my nokia c3-01 will I lose my call history.
You would have to call your previous employers to receive that. I do not think that anyone has a complete list of everyone's work employment history.
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Evolutionary Anthropologist
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A palaeontologist or an evolutionary palaeobiologist.
They call it "similarity" you should know that.
People who work in archaeological digs are called archaeologists. They study human history through the excavation and analysis of artifacts and structures.
niece.
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click menu and then call settings and ur call history is right there