____ are believed to have once existed as independent prokaryotes.
A) Bacteriophages
B) Chloroplasts
C) Slime molds
D) Protists
E) Nuclei

Question

​____ are believed to have once existed as independent prokaryotes.
A) ​Bacteriophages
B) ​Chloroplasts
C) ​Slime molds
D) ​Protists
E) ​Nuclei

Quizplus · Accepted Answer

Chloroplasts are believed to have once existed as independent prokaryotes, a theory supported by the endosymbiotic theory which suggests that chloroplasts were originally photosynthetic bacteria that began living symbiotically within a host cell.

​____ Are Believed to Have Once Existed as Independent Prokaryotes

____ Are Believed to Have Once Existed as Independent Prokaryotes