The Complete Book of 100,000 Reasons Why
Favlit. ten thousand reasons why
为什么涡虫切头长新脑？
简单的摘要：涡虫切头后能长出新脑，主要因为其强大的再生能力、干细胞的存在以及基因调控机制。
1、涡虫具有强大的再生能力，这是其物种的显著特征，能够再生失去的身体部分。
2、涡虫体内存在大量的干细胞，称为“新蒂细胞”，这些细胞具有分化成各种细胞类型的能力，包括神经细胞。
3、涡虫的再生过程受到基因调控，特定的基因会被激活，指导干细胞分化并形成新的脑组织。
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