Question

how did eukaryotes become so complex while prokaryotes remain comparatively simpler? for example, the human body contains tens of trillions of cells with many different functions, while a bacterium is made of a single cell without a nucleus. the endosymbiotic theory proposes that eukaryotes may have evolved from prokaryotic cells. scientists suggest that mitochondria and chloroplasts were once individual prokaryotic cells that lived within a larger host cell. over many thousands of years, the prokaryotes and their host thrived and eventually evolved together so that one couldnt exist without the other. today, mitochondria and chloroplasts are considered organelles, but they still have their own dna that resembles that of prokaryotes. which of these details from the passage supports endosymbiotic theory? a \the human body contains tens of trillions of cells with many different functions.\ b \a bacterium is made of a single cell without a nucleus.\ c \over many thousands of years, the prokaryotes and their hosts thrived.\ d \mitochondria and chloroplasts...have their own dna that resembles that of prokaryotes.\

Explanation:

Endosymbiotic theory posits prokaryotes became organelles. Own - like - prokaryote DNA supports this.

Answer:

D. "Mitochondria and chloroplasts...have their own DNA that resembles that of prokaryotes."