SAT Subject Biology Practice Question 43: Answer and Explanation
2. A unicellular organism contains a Golgi body and ribosomes but lacks a cell wall. It is heterotrophic, ingesting food via phagocytosis. What kingdom does this organism belong to?
Correct Answer: D
Protists include unicellular, eukaryotic organisms that digest food inside the cell. (Fungi, in contrast, carry out extracellular digestion.)