Learning Path
Question & Answer
Choose the Best Answer
A→B→C→D
A→C→B→D
B→A→C→D
D→C→B→A
Understanding the Answer
Let's break down why this is correct
The skin is the first shield that stops most germs from entering. Other options are incorrect because It assumes immune cells attack before they see the germs; This suggests germs attack before the skin can block them.
Key Concepts
Innate Immune Defenses
medium level question
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Deep Dive: Innate Immune Defenses
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Definition
The integumentary system serves as the first line of defense against pathogens, comprising skin, hair, feathers, and scales. These structures act as innate immune defenses, protecting animals from injuries, diseases, and parasites. Understanding these defenses is crucial in comprehending how the body prevents sickness and maintains health.
Topic Definition
The integumentary system serves as the first line of defense against pathogens, comprising skin, hair, feathers, and scales. These structures act as innate immune defenses, protecting animals from injuries, diseases, and parasites. Understanding these defenses is crucial in comprehending how the body prevents sickness and maintains health.
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