Given a scientific passage and an answer, generate a question for the given answer.
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Question: Passage: Diagram of a typical prokaryotic cell. Among other things, prokaryotic cells have a plasma membrane, cytoplasm, ribosomes, and DNA. Prokaryotes do not have membrane-bound organelles or a cell nucleus. Answer: not membrane-bound

Answer: What are unique about prokaryotic cells' organelles?

Question: Passage: Neurons are usually classified based on the role they play in the body. Two main types of neurons are sensory neurons and motor neurons. Answer: aphotic zone

Answer: What do you call the zone in a body of water where there is too little sunlight for photosynthesis?

Question: Passage: symbiotic relationship in which one species benefits while the other species is harmed. Answer: symbiotic relationship

Answer:
What is the term for the relationship in which one species benefits while the other species is harmed?