WAEC - Biology (2017 - No. 6)
The organism that can carry out both autotropic and heterotrophic modes of nutritions is
Chlamydomonas
Eudorina
Euglena
Spirogyra
Explication
Euglena use their 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.