Helppp pleaseeee !

2 answers:

8 0

The answer for the first question is B. mucus sweat and tears, all of those are defenses that the body uses when attacked. Now for the second option is A the answer because the first filter that a virus or a desease must pass is indeed the skin. Hope is good for you

Alex73 [517]3 years ago

5 0

The most important part of the body that shows non-specific defense against invading pathogens is skin (A). They include sweat, acid, mucus, oil in non-specific defense (B).

Further Explanation:

Skin is the major organ of the body, which has several features that shield the body from infections. Skin plays a very important role in nonspecific defense against pathogens. The skin surface receives the secretions from the sweat glands which contains lysozyme. This enzyme is responsible for digesting the bacterial cell wall. This feature alone does not make the skin barrier to infections. The acidic pH and mucus secretion also contribute to the barrier properties of the skin.

The sweat glands and oils are accountable for the acidic pH of 3-5 of the skin surface. This pH is acidic enough to inhibit the growth of pathogenic microorganisms. The skin surface receives the secretions from the sweat glands which contains lysozyme. This enzyme is responsible for digesting the bacterial cell wall. The mucus that is secreted by the skin is a sticky fluid that is responsible for trapping the microorganisms.

The mucus that is secreted by the skin is a sticky fluid that is responsible for trapping the microorganisms. This is one of the few characteristic features of the skin that is responsible for acting as a barrier to infection.

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