Answer:D. A dandelion plant includes a stem, several leaves, and at least one yellow flower.
Explanation:This sentence describes the structural organization of a dandelion plant and how it is made up of several less complex systems, such as stems, leaves, and flowers. It suggests that a dandelion is a living system with multiple subsystems that work together to support its growth and reproduction. The other options do not provide information about the structural organization of a dandelion as a living system.