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Multiple Choice

What term refers to germs of microorganisms that cause disease?

Germs that cause disease are called pathogens. This term covers the disease-causing microorganisms, including bacteria, viruses, fungi, and parasites. Many microorganisms are harmless or beneficial, which is why we differentiate nonpathogenic organisms from pathogens. Antibodies, on the other hand, are immune system proteins that help fight infections, not germs themselves. Harmless bacteria illustrate nonpathogenic examples, but they don’t define the disease-causing category.

Germs that cause disease are called pathogens. This term covers the disease-causing microorganisms, including bacteria, viruses, fungi, and parasites. Many microorganisms are harmless or beneficial, which is why we differentiate nonpathogenic organisms from pathogens. Antibodies, on the other hand, are immune system proteins that help fight infections, not germs themselves. Harmless bacteria illustrate nonpathogenic examples, but they don’t define the disease-causing category.