yuraavissel yuraavissel

02-03-2016
Biology

contestada

Mitochondria and chloroplasts are thought to have been ______.
a. free-living prokaryotes
c. protocells
b. early forms of eukaryotes
d. spontaneously generated

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hworonie hworonie

02-03-2016

a. free-living prokaryotes They were then endocytosed, which is part of the endosymbiotic theory.

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astauch astauch

02-03-2016

The correct answer is free-living prokaryotes. It is believed bacteria of some sort got into the prokaryote, and formed these two organelles.

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