Which statement below correctly explains and gives the importance of the endosymbiotic theory?
A)The endosymbiotic theory states that the inner and outer membrane of the endoplasmic reticulum indicates these were once free-living organisms which were taken into an early cell via endocytosis. The theory was further supported by the presence of prokaryotic ribosomes and replication of the endoplasmic reticulum via binary fission.
B)The endosymbiotic theory states that the inner and outer membrane of the mitochondria indicates these were once free living organisms which were taken into an early cell via endocytosis. The theory was further supported by the fact that mitochondria have their own DNA and replicate via binary fission.
C)The endosymbiotic theory states that through endocytosis, early prokaryotic cells were able to bring in additional nutrients. These additional nutrients provided important energy that drove evolution of these prokaryotic cells into the eukaryotic cells seen today in more advanced organisms.
D)The endosymbiotic theory states that through endocytosis, early prokaryotic cells were able to bring in early energy rich eukaryotic cells. The energy provided drove evolution of these prokaryotic cells into the eukaryotic cells seen today in more advanced organisms.

The statement that best explains the endosymbiotic theory is that the inner and outer membrane of the mitochondria indicates these were once free living organisms which were taken into an early cell via endocytosis. The theory was further supported by the fact that mitochondria have their own DNA and replicate via binary fission (option B).

Explanation:

The endosymbiotic theory is due to the evolutionary biologist Lynn Margulies, who through his postulates tried to establish evidence of the origin of eukaryotic cells, by incorporating a prokaryotic cell into the interior of others.

Mitochondria -besides chloroplasts- are one of the examples that support the endosymbiotic theory.  Both mitochondria and chloroplasts have characteristics and behavior similar to that of a bacterium (prokaryote):

These characteristics support that some organelles were at some time independent prokaryotic cells that were incorporated into other cells, by endocytosis.

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Importance of endosymbiotic theory link

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation: