Aeuglena is a microorganism that can either make its own food using energy from the sun, or it can feed on other organisms to get the nutrients and energy that it needs. which of the following statements is demonstrated by the euglena? a. only multicellular organisms can be photosynthetic. b. organisms that are producers cannot also be consumers. c. only unicellular organisms can feed on other organisms. d. some organisms cannot be neatly classified as a plant or animal.