This question is expecting you to define the relatinship between organelles in an endomembrane system. First ask yourself do you know organelles are. These are parts of a organism that has an important role to it's entire function such as nuclear membrane, Golgi apparatus, lysosomes, and vesicles. Next once you are beknown to what organelles are you should consider what an endomembrane system may be. I would assume it is the collective operation of all the organelles. Now what is really important is the relationship between organelles.
The relationship between organelles is that they are all unique but exist to work in a prokaryote or eukaryote. There relationship is that they all must work within the same body.
Please vote my answer brainliest. thanks!