What happened to the earlier kingdoms (or city-states) after unification?

Imhotep was the Grand Vizier to the Pharaoh Djoser of the Old Kingdom who designed the first pyramid. He probably got his inspiration from which of the following:

What were key sources of power for Early Dynastic rulers?

What major political shift occurred at the end of the Early Dynastic period?

An individual unaffected by cancer was tested for a hereditary cancer syndrome due to a family history of cancer.  The testing of 15 genes found no known variant associated with disease.  What is this type of result referred to as?

Activated fibroblasts differ from resting fibroblasts in that they:

What type of writing system were hieroglyphics?

What major technological advancements occurred during the Uruk period?

Narmer is famous in Egyptian history for:

What was the primary purpose of early writing in Uruk?