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1.The process of differentiation is crucial for the growth and development of a species.
分化过程对于物种的成长和发育至关重要。
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2. During the differentiation phase, cells begin to specialize and differentiate into different types of cells.
在分化阶段，细胞开始专业化并分化成不同类型的细胞。
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3. The differentiation phase is marked by changes in cell shape and size, as well as the emergence of specialized tissues.
分化阶段以细胞形状和大小的改变以及特化组织的出现为标志。