FERN is a vascular plant, which means it has true roots, stem and leaves, and takes in fluid through a system of tubes rather than absorbing it through the surface. Ferns reproduce by spores instead of seeds. In fact, ferns are in between the more simple, primitive plants, such as liverworts and MOSSES, and the later evolving seed-producing plants. They are very ancient; ancestors of modern species were the dominant vegetation on the planet 350 million years ago. All ferns have leaves that...

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