Which of the Following Lists the Correct Sequence of Gases

question 36

Multiple Choice

Which of the following lists the correct sequence of gases, from most to least, in terms of percentage within the homosphere?

• A) nitrogen, argon, oxygen, xenon, carbon dioxide
• B) nitrogen, oxygen, argon, carbon dioxide, trace gases
• C) oxygen, ozone, nitrogen, PAN, carbon dioxide
• D) oxygen, nitrogen, neon, hydrocarbons, carbon dioxide

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Definitions:

GP 120

A glycoprotein found on the surface of the HIV virus, playing a critical role in the virus's ability to infect host cells.

CD4 Receptors

Proteins found on the surface of certain immune cells that are critical for the immune system's response to pathogens, commonly associated with HIV infection dynamics.

T-cell Count

A measure of the number of T-cells, a type of white blood cell, in the bloodstream, used to assess immune system health, particularly in the context of HIV/AIDS.

HIV Antibodies

Proteins produced by the immune system in response to infection with the human immunodeficiency virus, used in testing for HIV.