(this is a practice not a test) I'm struggling to find the answers to this question, could you guys help me?

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

connect the batteries in series and hope

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