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A plant’s above-ground architecture develops from a group of cells called the shoot apical meristem. These stem cells generate every part of the plant’s structure above the soil. Whether they become shoots, leaves, or inflorescences is determined by the meristem’s stage of life. In the earlier vegetative stage, the stem cells produce leaves, while in the later reproductive stage, they grow into inflorescences. This is why no one has bred a plant that has the leaves of a cabbage and the head of a broccoli.
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1,000 pages or more for some of those books and they didn't have room for even one joke? I promise at least seven in this post alone. See if you can spot them all!
现场，每位委员桌上都摞着厚厚的文件。
发布仪式现场播放了“最美自然守护者”先进事迹的视频短片，从不同侧面讲述了他们的工作生活感悟。中央宣传部、自然资源部负责同志为他们颁发“最美自然守护者”证书。