Search Results: "angiosperms and gymnosperms"

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  The Plants&The Bees: Plant Reproduction - CrashCourse Biology #38

  1,718 views / 0 likes - added 9 years ago

  Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular plants 470 million years ago, but they've tricked it out so that it works a whole lot differently compared to the wa

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