The theory of endosymbiosis states that 1.5bn years ago, some early eukaryotes (the ancestor cells of animals and plants) engulfed bacterial cells and kept them prisoner inside their cells. They did this so they could harvest the sugars that the bacterial cells were producing. The bacterial cells used light to produce sugars from carbon dioxide and water. Eventually, these engulfed bacteria became which type of organelles?
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The theory of endosymbiosis states that 1.5bn years ago, some early eukaryotes (the ancestor cells o...
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