Q: Given a scientific passage and an answer, generate a question for the given answer.
Passage: The immune system is the body system that fights to protect the body from specific pathogens. The immune system's specific reaction to a pathogen is called an immune response. The immune system includes several organs and a system of vessels that carry lymph. Answer: immune system
A:
What is the name of the body system that fights to protect the body from specific pathogens?