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Nonspecific immunity includes mucus, tears and saliva that contain

that destroys bacteria.
Answer and Explanation

The Correct Answer is {"dropdown-group-1":"B"}

Choice A rationale:

Viruses are pathogens that the immune system defends against, not components of nonspecific immunity.

Choice B rationale:

Lysozyme is an enzyme found in mucus, tears, and saliva that destroys bacteria, contributing to nonspecific immunity.

Choice C rationale:

Lysol is a brand of cleaning products and is not found in mucus, tears, or saliva.

Choice D rationale:

Immunoglobulins are antibodies produced by the immune system, not components of mucus, tears, or saliva. 


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Related Questions

Correct Answer is A

Explanation

Choice A rationale:

Hemoglobin is an iron-containing biomolecule that binds oxygen and is responsible for the red color of the cells and the blood. -

Choice B rationale:

Hematocrit is not an iron-containing component, but rather a measure of the proportion of blood volume that is occupied by red blood cells. -

Choice C rationale:

Cytoplasm is the fluid inside the cell where cellular components are suspended, but it does not contain iron. -

Choice D rationale:

The nucleus is not present in mature red blood cells.

Correct Answer is A

Explanation

Choice A rationale:

HIV invades various immune cells, most notably CD4+ T cells, eventually destroying them.

Choice B rationale:

D cells are not a recognized category of immune cells, and HIV does not specifically invade them.

Choice C rationale:

While B cells are part of the immune system, HIV primarily targets CD4+ T cells, not B cells.

Choice D rationale:

Helper C cells are not a recognized category of immune cells, and HIV does not specifically invade them.

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