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 The wide range in the structure of higher plants is fascinating, particularly the diversity found in angiosperms. Despite the large diversity in external structure or morphology, all angiosperms share certain characteristics: roots, stems, leaves, flowers, and fruits. Standard technical terms and definitions are essential for successful classification and understanding of higher plants and other living organisms. Variations in different plant parts are often adaptations to their environment, such as adaptations to various habitats, protection, climbing, or storage. When pulling out any weed, you will observe that they all have roots, stems, and leaves. Some may also bear flowers and fruits. The underground part of a flowering plant is known as the root system, while the portion above the ground is called the shoot system. 5.1 THE ROOT In dicotyledonous plants, the radicle directly elongates to form the primary root, which grows into the soil. This primary root gives rise to latera...