Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon
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Doesn't it make alot more sense to assume that UV was responsible for much of atmospheric oxygen through splitting of 2H2O to O2 than cyanobacteria at the beginning or a combination of both? then after ozone layer formation it was solely cyanobacteria. thanks for the series.
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@chrising299 Yes he is!
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Hey Sal, r u a youtube partner?
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This video (like most Khan Academy ones) is fantastic. The problem is that some of the writing is not visible - it is outside of the visible viewing area.
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@veryrice yeah i noticed that too, lol
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cant see the whole board :(
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@:42
Looks like someone's been playing a little too much Starcraft...
1 year ago 5
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This is the first time I've ever learned about this stuff, it's so interesting!!!
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I love you..
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This video should be a part of the biology playlists, since this was covered in my AP Biology curriculum.
vpletap 1 year ago 16
Fantastic series! I knew quite a lot of this, but this is by far the best overview I've seen about the origins of life regarding the time-line and causalities.
cmxcmx 1 year ago 9