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

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

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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 way it did back in the Ordovician swamps where it got its start. Here's how the vascular plants (ferns, gymnosperms and angiosperms) do it.

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http://www.youtube.com/watch?v=ExaQ8shhkw8&list=UUX6b17PVsYBQ0ip5gyeme-Q&index=5&feature=plcp
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up2u_GREEN_OER_ODS_OER_http://www.youtube.com/watch?v=ExaQ8shhkw8&list=UUX6b17PVsYBQ0ip5gyeme-Q&index=5&feature=plcp
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K12
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