The word “vegetal” (green) comes from the Latin word vegere, which means giving life.
The plant provides oxygen on earth.
Plants convert energy from sunlight into energy for the plant, and this energy is stored in the plant and it is what we receive when we eat them.
The stem is the axis of the plant that grows towards the light and supports the leaves and flowers of transporting other nutrients (sap) between the root and the rest of the plant.
The people would be equivalent body, which also contains all organs and all transports nutrients through the blood.