1. Chapter 28
Protists
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2. The greatest number of eukaryotic organisms are
vertebrates.
animals.
plants.
protists.
fungi.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.

3. Photosynthetic eukaryotes contain both mitochondria and chloroplasts
Photosynthetic eukaryotes contain both mitochondria and chloroplasts. Which sequence most likely describes the evolution of this group?
Ancestral prokaryote engulfs heterotrophic prokaryote, then engulfs photosynthetic prokaryote.
Ancestral prokaryote engulfs photosynthetic prokaryote, then engulfs heterotrophic prokaryote.
Both sequences are equally likely.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.