Sally wants to know if fertilizer from farms will make algae grow. Her hypothesis is that because algae live in water and are not plants, plant fertilizer from farms will not make the algae grow. Explain how Sally could responsibly test her hypothesis.

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls