The roots, the stem and the leaves. Some plants also have flowers which are made up of petals. The roots keep the plant in the ground and hold it up. They also take in water from the soil.
All flowering plants go through the following life cycle. Germination is the process by which a plant begins to grow from a seed. Roots form under the soil. The stem, leaves and flower emerge ...
Experiments with mutant plants and selective cell killing have shown that plant stem cells are maintained by signals from other, adjacent, cells. This feature is shared with animal stem cells and ...