Description given on Youtube:
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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Table of Contents
1) Sporophyte Dominance 01:55
2) Ferns 02:14
3) Gymnosperms 03:35
4) Angiosperms 05:33
5) Truth or Fail: Fruit Edition! 08:28
References for this episode can be found in the Google document here: http://dft.ba/-2d8V
crash course, biology, plant, reproduction, sporophyte, gametophyte, diploid, haploid, cell, alternation of generations, vascular plants, cone, flower, strategy, reproductive, sex, dominance, chromosome, sporophyte dominant, fern, spore, frond, extinct, pollen, ovule, seed, evolution, gymnosperm, conifer, ginko, cycad, lodgepole pine, serotinous, forest fire, competition, angiosperm, flying insect, coevolve, mutualism, perfect flower, male, female, sepal, petal, anther, filament, stamen, ovary, style, stigma, pollination, bee, fertilization, fruit, hank green Support CrashCourse on Subbable: http://subbable.com/crashcourse