| 1. | This lineage is believed to be the proof of Eukaryotic Endosymbiosis.
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| 2. | Later endosymbiosis led to the spread of plastids in some lineages.
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| 3. | There are several lines of evidence that support endosymbiosis theory.
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| 4. | These bivalves are remarkable for their endosymbiosis with sulphide-oxidizing bacteria.
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| 5. | Euglenoids descend from an ancestor that took up green algae by secondary endosymbiosis.
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| 6. | Other algae likely took their chloroplasts from these forms by secondary endosymbiosis or ingestion.
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| 7. | Instead, some eukaryotes have obtained them from others through secondary endosymbiosis or ingestion.
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| 8. | The related process of symbiogenesis or endosymbiosis was proposed by Lynn Margulis in 1967.
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| 9. | These new ideas can be studied today under the title of the Theory of Endosymbiosis.
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| 10. | One possible secondary endosymbiosis in process has been observed by Okamoto & Inouye ( 2005 ).
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