Learning Path
Question & Answer
Choose the Best Answer
Sebum
Mucus
Skin cells
Hair follicles
Understanding the Answer
Let's break down why this is correct
The oil that comes from skin glands carries fatty acids that stop germs from growing. Other options are incorrect because Mucus traps germs, but it lives in tubes like the nose, not on the skin; Skin cells make a hard outer layer that blocks germs, but they don’t kill them.
Key Concepts
Barriers to Pathogens
easy level question
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Deep Dive: Barriers to Pathogens
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Definition
Barriers to Pathogens refer to the various defenses in the body that prevent harmful microorganisms from entering and causing infection. These barriers include mucus, skin oils, and other physical and chemical defenses that help protect against pathogens, contributing to the body's innate immune response.
Topic Definition
Barriers to Pathogens refer to the various defenses in the body that prevent harmful microorganisms from entering and causing infection. These barriers include mucus, skin oils, and other physical and chemical defenses that help protect against pathogens, contributing to the body's innate immune response.
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