1、 How did you get here

Today's plants are gradually evolved from the original single-cell plants. At the beginning, only one cell is performing the function of growth and can survive by itself. With the change of the external environment, single cells could not adapt to the growth environment at that time, so they began to evolve gradually and became multicellular plants, which basically took on the appearance of current plants. In the process of continuous evolution and development, the structure and function of each cell in multicellular plants gradually become thinner, which has the functions of growth, flowering and fruiting. However, some plants retain the original single-cell form because of small environmental changes

2、 Plant evolution

At first, it was very simple. It was just a single-cell fungus plant. There were no roots, leaves and other organs, and no chlorophyll synthetic nutrients. With the development, it evolved into algae. At this time, chlorophyll can absorb sunlight and synthesize nutrients. In the later stage, lichen plants composed of algae and mycelium began to exist. After that, the environment changed greatly and needed evolution to adapt to growth. Lichens gradually evolved into bryophytes, later into ferns, and then the current seed plants