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Question & Answer
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It provides a physical barrier to prevent pathogen entry.
It actively destroys pathogens upon contact.
It produces antibodies to fight infections.
It helps in the production of white blood cells.
Understanding the Answer
Let's break down why this is correct
The skin creates a solid, continuous layer that blocks microbes from entering the body. Other options are incorrect because Some skin cells can fight germs, but the main job is not to actively kill them; Antibodies are made by special cells inside the blood, not by skin or hair.
Key Concepts
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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