A beaker of pond water containing few specimens of Euglena was placed in a dark room for two weeks. At the end of this period, the specimens of Euglena were still alive because they were
able to carry out holozoic nutrition
able to carry out photosynthesis using carbon dioxide in the pond water
better adapted to life in darkness than to life in light
not overcrowded
Correct answer is A
No explanation has been provided for this answer.