According to the endosymbiotic theory, large prokaryotic cells may have
engulfed smaller prokaryotic cells over 1.5 billion years ago. If the smaller
cells survived, the larger cells may have eventually evolved into eukaryotic
cells.
How would you describe the relationship between the original prokaryotic
cells?
A. Specialized cells in a single organism
B. Predator-prey
C. Parent-offspring
D. Parasite-host
