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24 juillet 2023 - 14:12
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The Reproductive Lives of Nonvascular Plants: Alternation of Generations - Crash Course Biology #36
Hank introduces us to nonvascular plants - liverworts, hornworts & mosses - which have bizarre features, kooky habits, and strange sex lives. Nonvascular plants inherited their reproductive cycle from algae, but have perfected it to the point where it is now used by all plants in one way or another and has even left traces in our own reproductive systems.
Table of Contents
1) Key Traits of Nonvascular Plants 01:42
2) 3 Phyla of Bryophytes 02:52
3) Alternation of Generations 04:33
a) Gametophyte Generation 05:04
b) Sporophyte Generation 05:25
c) In Vascular Plants 07:48
References:
http://news.nationalgeographic.com/news/2001/06/0604_wirealgae.html
http://kidsresearchexpress.blogspot.com/2008/07/alternation-of-generations.html
http://facultyweb.wcjc.edu/biology/BIOL1407/Lab%20Handouts/Lab_4_land_plants_I.pdf
http://www.sumanasinc.com/webcontent/animations/content/moss.html
http://en.wikipedia.org/wiki/Alternation_of_generations
http://www.bio.miami.edu/dana/dox/altgen_new.html
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