When cells divide by mitosis, the number of cells increases, and hence the organism grows.

当细胞通过有丝分裂分裂时，细胞数量增加，因此生物体生长。

You have just the number of cells that you need to differentiate and mature and grow.

你只需要足够数量的细胞来分化、成熟和生长。

Different organs have different numbers of cell types.

不同的器官有不同数量的细胞类型。

The growing number of cell phones in Sub-Saharan Africa has increased access to educational tools, banking services, and health care resources.

撒哈拉以南非洲地区手机数量的增加增加了人们获得教育工具、银行服务和医疗保健资源的机会。

A different example would be tissue injury, like burns, rhabdomyolysis, and tumor lysis syndrome where large numbers of cells die releasing intracellular phosphate into the blood.

还有可能是组织损伤，例如烧伤、横纹肌溶解与肿瘤溶解综合征，此时大量的细胞死亡，细胞内的磷释放到血液中。

Since so much potassium is kept within the cell, when a large number of cells die or lyse, potassium is released into the blood, which causes hyperkalemia.

因为细胞内过多，很多细胞会死亡或溶解，钾离子释放入血，导致高钾血症。

To build a human, factoring in the huge number of cells that die and are lost along the way, scientists estimate it takes 10 to the 16th cell visions.

为了建造一个人类，考虑到在此过程中死亡和丢失的大量细胞，科学家估计需要10 到 16 个细胞视觉。

The transitional zone undergoes hyperplasia, or an increase in the number of cells, in a large percentage of older men, and that often leads to compression of the urethra.

在大多数老年男性身上，移行带通常会增生，即细胞数量的增加，常常会使尿道受压。

The most common primary cause is called idiopathic hyperaldosteronism, because the zona glomerulosa has an increase in the number of cells secreting aldosterone, but it's not really clear why this happens.

最常见的原发性病因称为特发性醛固酮增多症：这是由于球状带分泌醛固酮的细胞数量增加，但目前尚不清楚为什么会发生这种情况。