Stem cell are important because stem cells represent an exciting area in medicine because of their potential to regenerate and repair damage tissue .
Physical is something you can have/ hold and mental is something in ur head that you can't see or hold.
Democratic Republicans and National Republicans
C. It happens over a period of time not overnight
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The answer is operon. These set of genes are transcribed together because they share a single promoter and operator. Therefore they are transcribed into one mRNA and translated together. These genes are, therefore, expressed together at all times. Examples are the tryptophan and lac operons of Escherichia coli
