6. What is Endosymbiosis Theory?
A. Two prokaryotic cells combine to produce one eukaryotic cell.
B. Two mitochondria combine to produce the nucleus.
C. One eukaryotic cell splits up into several prokaryotic cells.
D. The folding of a tissue so that an outer surface becomes an inner surface

Question

6. What is Endosymbiosis Theory?
A. Two prokaryotic cells combine to produce one eukaryotic cell.
B. Two mitochondria combine to produce the nucleus.
C. One eukaryotic cell splits up into several prokaryotic cells.
D. The folding of a tissue so that an outer surface becomes an inner surface

anonymous · Answer

Endosymbiosis is usually applied to the entrance of prokaryotic cells into others for mutual benefit - such as photosynthetic algae becoming chloroplasts or mitochondria evolving from prokaryotes. Evidence comes from the genomes in mitochondria and chloroplasts which are separate from the host cell nucleus. Given this definition , one of the above answers is closest to the truth. Best wishes,