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rachelarnold rachelarnold
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4 years ago
What is indicated by the fact that NOT all eukaryotic cells contain both mitochondria and chloroplasts?


Endosymbiosis did not occur at all.


Endosymbiosis occurred only in the evolution of mitochondria.


Endosymbiosis did not occur in stages.


Endosymbiosis occurred in stages.
Textbook 
Biology: Exploring the Diversity of Life

Biology: Exploring the Diversity of Life


Edition: 4th
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amandaaaeamandaaae
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4 years ago
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