Secondary endosymbiosis is the key to much of protist diversity. Endosymbiosis of
Chapter 16, Problem 16.14(choose chapter or problem)
Secondary endosymbiosis is the key to much of protist diversity. Endosymbiosis of prokaryotic cells resulted in the evolution of eukaryotic cells containing mitochondria. By a similar process, heterotrophic eukaryotic cells engulfed cyanobacteria, which became chloroplasts. Secondary endosymbiosis of eukaryotic cells by red and green algae gave rise to diverse lineages of protists.
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