The organism that can carry out both autotropic and heterotrophic modes of nutrition is?

A. Chlamydomonas
B. Eudorina
C. Euglena
D. Spirogyra

Correct Answer: Option C

Explanation

Euglena uses its chloroplasts to produce nutrients through photosynthesis. It is a dual organism as it can act both as an autotroph, making its own food, and heterotroph, feeding on other substances.