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colleen colleen
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Posts: 17076
12 years ago
Explain the endosymbiotic theory. What is the evolutionary value of endosymbiosis?
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Sunshine ☀ ☼

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12 years ago
The theory states that a chemoorganotrophic bacterium and a cyanobacterium were stably incorporated into a cell and gave rise to a mitochondrion and chloroplast (respectively), which formed a eukaryotic cell. Endosymbiosis provides a mutualistic relationship where the incorporated cells are protected from direct contact with the environment, and the cell that incorporated the cells gains metabolic diversity.
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