Answer:
pancreas
Explanation:
beta cells of the pancreas produce insulin
I think you're looking for Cellular differentiation
The DNA has to code for a protein and it has to replicate
Answer:
Escherichia coli bacterium, Streptococcus bacterium, Sulfolobus acidocaldarius archeobacterium, streptococcus pyogenes, lactobacillus acidophilus, Cyanobacteria, Archaea. Do you need more?