Final answer:
True, a complete flower includes 4 whorls: the calyx, corolla, androecium, and gynoecium.
Step-by-step explanation:
The statement is true: A complete flower has 4 whorls of parts. These whorls are known as the calyx, corolla, androecium, and gynoecium. The calyx consists of sepals, the corolla is made up of petals, the androecium includes the stamens with anthers containing pollen, and the gynoecium is composed of the female reproductive parts, such as carpels with a stigma, style, and ovary. Flowers that contain all four of these whorls are considered complete, whereas missing any of these parts would classify a flower as incomplete.