Roots were mainly differentiated from the callus of inflorescences while they were 0.1cm and over 1.0cm in length.

用长1厘米以上和长0.1厘米的幼穗高体培养，其愈伤组织主要是分化根；

youdao

Also it seems to be the case that life forms, over periods of time, become more differentiated.

而且它似乎喜欢随着时间的推移，生命形式呈现得越来越多样化。

youdao

Dr Cheng said the results clearly showed there was no advantage in using adult stem cells over mature fully differentiated cells.

BBC: NEWS | Health | Cloning without stem cells works

But should this narrowly differentiated improvement demand a big premium over other ADHD alternatives, especially generics?

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