Final answer:
Cell differentiation is essential for the growth and development of a tree. Without differentiation, all cells would be identical, leading to the absence of specialized structures such as leaves.
Step-by-step explanation:
When the seed of a tree first starts to grow, cell differentiation is crucial for the development of different plant tissues and organs. If the cells did not differentiate, all of the cells would be identical, resulting in the absence of specialized structures necessary for the proper growth and functioning of the tree. For example, without differentiation, the seed could form roots but not leaves because leaf cells require specific adaptations and functions that differ from root cells.
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