After What Dose of Radiation Does Xerostomia Typically First Occur

question 26

Multiple Choice

After what dose of radiation does xerostomia typically first occur?

• A) 1000 to 2000 cGy
• B) 2000 to 3000 cGy
• C) 3000 to 4000 cGy
• D) 4000 to 5000 cGy

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Definitions:

Geology

The science that deals with the Earth's physical structure and substance, its history, and the processes that act on it.

Traits Evolve

The process by which characteristics or traits of organisms change over generations through natural selection and genetic drift.

Species Survive

The ability of a species to continue existence and avoid extinction by adapting to environmental changes or overcoming threats.

Uniformitarianism

The idea that the natural laws observable around us now are also responsible for events in the past. One part of this view, for example, is the idea that Earth has been shaped by the cumulative action of gradual processes like sediment deposition and erosion.