Professor Dave Explains
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The Origin of Multicellular Life: Cell Specialization and Animal Development
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November 4, 2017
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9:07Now PlayingAlright, so we've learned a lot about the origin of life. We learned about how the first organic molecules can have formed spontaneously, and how they might have assembled into the first protocell. From there, endosymbiotic theory tells us how these merged to form more complex eukaryotic cells. But these are still organisms made of one cell. Animals like humans are made of trillions of cells. So how did life make the big leap from one cell to many cells? To answer this, it is helpful to look at embryonic development, because the way one cell eventually becomes an entire animal can tell the story of how life stumbled upon this possibility in the first place. Crazy stuff!
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