Biology College

Which of the following choices is an example of a non-specific barrier?
skin
white blood cells
lymphatic system
the immune system

Answers

Answer 1
Lymphatic system. I think
Answer 2

An example of a non-specific barrier is the skin. Thus, the correct option is A.

What are non-specific barrier?

Non-specific barriers are the innate, or nonspecific type of immunity of the defense system with which a person is born with. Non-specific barrier protects a person against all the antigens. Innate immunity involves the barriers which keep the harmful materials from entering the body. These barriers form the first line of defense in the immune response of an individual.

Nonspecific defense mechanisms include the skin, mucous membranes, secretions, excretions, enzymes, inflammatory responses, genetic factors, and the behavior patterns.

Skin is a physical and non-specific barrier which is covered with oily and acidic pH which ranges from 3 to 5, and the secretions from sebaceous and sweat glands, respectively.

Therefore, the correct option is A.

Learn more about Barriers here:

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Related Questions

Directions: Answer the following questions. 3. When you swallow, which type of muscle moves food from your throat all the way down into your stomach? A. skeletal muscle B. cardiac muscle C. smooth muscle D. voluntary muscle​

Answers

Answer:

c smooth muscle

Explanation:

esophagus does moves food to the stomach

esophagus is a smooth muscle

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