Final answer:
In plants, the formation of new cells, tissues, and organs is restricted to regions called meristems. These meristems are embryonic regions where cells are actively dividing. Root apical meristems and shoot apical meristems produce cells that differentiate into different types of tissues.
Step-by-step explanation:
The formation of new cells, tissues, and organs in plants is restricted to regions called meristems. Meristems are embryonic regions of plants where cells are actively dividing and not yet committed to a specific cell type. The two types of meristems in plants are root apical meristems and shoot apical meristems. These meristems produce more and more cells that differentiate into different types of tissues, such as dermal, vascular, and ground tissue.