Death from AIDS Is Due To​

question 22

Multiple Choice

Death from AIDS is due to​

• A) ​a direct effect of the deadliness of the human immunodeficiency virus (HIV).
• B) ​the destruction of the immune system, leaving people vulnerable to a variety of infections, any of which can be fatal.
• C) ​poor medical care for those infected.
• D) ​the tendency of those who are infected to avoid medical care until a critical stage of infection has already been reached.

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Definitions:

Parfocal Microscope

A microscope designed such that once an object is in focus at one magnification, it remains in focus when the magnification is changed.

Objective Lens

The part of a microscope closest to the object being observed, which focuses light or electrons to create an enlarged image.

Ocular Lenses

The lenses closest to the eyes in a microscope, binoculars, or other optical instruments, enhancing the user's ability to see small details.

Compound Microscope

An optical instrument consisting of a series of lenses that magnify objects in steps; used for detailed observation of microorganisms and cells.