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GYMNOSPERMS
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Gymnosperm | Definition, Description, Plants, Examples, Phylogeny, & Facts | Britannica
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gymnosperms are dominant plants and first birds appear
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1 Changes in diversity of early land plants, pteridophytes, gymnosperms... | Download Scientific Diagram
Gymnosperm | Definition, Description, Plants, Examples, Phylogeny, & Facts | Britannica
Which period, does the gymnosperm dominate the Earth?
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Angiosperms versus gymnosperms: How flowering plants came to rule | New Scientist
Seed Plants Two groups of seed plants: Gymnosperms Gymnosperms Angiosperms Angiosperms Gymnosperms include the conifers and cycads and this group originated. - ppt download
