Final answer:
Pseudoparasites are considered false parasites, meaning they are mistaken for real parasites but do not exhibit actual parasitism. An example of a true parasite is Trypanosoma brucei, which evades host immune responses by changing surface proteins.
Step-by-step explanation:
Pseudoparasites are false parasites. They are entities that appear to be parasites but do not actually have a parasitic relationship with the host. In the context of a question on parasitic protists, one example is Trypanosoma brucei, which is a true parasite that evades the host immune system by altering its surface proteins with each generation. True parasites, like Trypanosoma brucei, engage in a relationship where the parasite benefits, and the host is harmed. Parasites can employ various tactics like mimicry or immune system evasion to survive within the host and complete their reproductive cycle.