QuestionAugust 17, 2025

The skin is a second line of barrier True False

The skin is a second line of barrier True False
The skin is a second line of barrier
True
False

Solution
4.4(217 votes)

Answer

False Explanation 1. Identify the lines of defense in the immune system The first line of defense includes physical and chemical barriers like skin and mucous membranes. The second line involves internal defenses such as phagocytes, inflammation, and fever. 2. Determine the role of skin Skin acts as a physical barrier to pathogens, making it part of the first line of defense, not the second.

Explanation

1. Identify the lines of defense in the immune system<br /> The first line of defense includes physical and chemical barriers like skin and mucous membranes. The second line involves internal defenses such as phagocytes, inflammation, and fever.<br /><br />2. Determine the role of skin<br /> Skin acts as a physical barrier to pathogens, making it part of the first line of defense, not the second.
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