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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.
第五百五十条 排放噪声的单位和公共场所管理者，应当建立噪声污染防治责任制度，明确负责人和相关人员的责任。