Can one and the same organism have autotrophic and heterotrophic nutrition?

Such organisms exist and there are quite a few of them. Autotrophs are those living organisms that can themselves create various organic substances necessary for their life. This type of organisms includes green plants that have the ability to photosynthesize. But not all cells can synthesize glucose themselves, so plants have transport cells to transfer nutrients to other organs. Euglena green has chloroplasts, but it can also feed on ready-made substances. Therefore, it is both an autotroph and a heterotroph at the same time.