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olga_2 [115]
3 years ago
9

When does cell differentiation occur?

Biology
2 answers:
Inessa [10]3 years ago
6 0
<span> Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.</span>
alexgriva [62]3 years ago
3 0
D) when cells are express different genes
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