Prostate-Specific Antigen (PSA) Is a

question 81

Multiple Choice

Prostate-specific antigen (PSA) is a

• A)protein that combines with testosterone to promote growth of the testes.
• B)protein that helps produce a liquid that transports sperm when it is ejaculated.
• C)protein that indicates a diseased prostate.
• D)type of rectal exam that detects an enlarged prostate.

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Definitions:

Ozone

A molecule composed of three oxygen atoms, found in the Earth's stratosphere, where it forms a layer that protects life by blocking most of the sun's harmful ultraviolet radiation.

Stratosphere

The second major layer of Earth's atmosphere, just above the troposphere and below the mesosphere, known for containing the ozone layer.

Antarctica

The Earth's southernmost continent, containing the geographic South Pole, known for its extensive ice sheets and cold climate.

Ozone Depletion

The reduction of the ozone layer in the Earth's stratosphere caused by the release of certain chemical compounds, leading to increased ultraviolet radiation reaching the Earth's surface.