stems

A stem is a part of a plant that connects the leaves and roots. It is typically located above ground and is responsible for transporting water and nutrients from the roots to the leaves. Stems can vary greatly in size and shape, depending on the type of plant. For example, the stems of grasses are often thin and flexible, while the stems of trees are typically thick and woody. In some plants, the stem is also responsible for storing food and reproducing. Stems can be modified to perform different functions, such as in the case of the potato, which is a modified stem that stores nutrients. The study of stems is an important aspect of botany, as it helps us understand the structure and function of plants.