What are function of the trunk?

The trunk of a tree primarily serves three functions: it supports the crown, allowing branches and leaves to access sunlight for photosynthesis; it transports water and nutrients from the roots to the leaves through its vascular system (xylem and phloem); and it acts as a storage area for carbohydrates and other essential substances. Additionally, the trunk provides protection against environmental factors and pests through its bark. Overall, the trunk plays a vital role in the tree's growth, health, and stability.