Plants that aren"t good :D. Blue Planet Biomes - Plants. The Importance of Plants Close to 2.5 billion years ago, the earth's surface and atmosphere were stable enough to support primitive life.
Single-cell organisms began to develop in the seas that covered the planet. Plant_index. Botany.com: Plant Encyclopedia to Identify Plants, Flowers, Trees & More. Plant & Flower Dictionary – Botanical Information & More on Botany.com.