Base your answer to the question on the information below and on your knowledge of biology. A biology student was given three unlabeled jars of pond water from the same source, each containing a different type of mobile unicellular organism: euglena, ameba, and
paramecium. The only information the student has is that the ameba and paramecium are both heterotrophs and the euglena can be either heterotrophic or autotrophic, depending
on its environment.
State one way the euglena's two methods of nutrition provide a survival advantage the other unicellular organisms do not have.