Which of the Following Statements Is Not True About Crohn's

question 16

Multiple Choice

Which of the following statements is not true about Crohn's disease?

• A)It can affect any portion of the GI tract from mouth to anus.
• B)It most commonly affects the ileum and colon.
• C)Damage involves only the mucosal layers of the intestine.
• D)The inflammatory process is characterized by the formation of fistulas.

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Definitions:

Unconformity

A surface within rock layers that represents a period of erosion or non-deposition, indicating a break in the geological record.

Index Species

Species that indicate the presence of particular environmental conditions, used by scientists to assess the health of ecosystems.

Fossilization

The process by which living organisms are preserved as fossils, including permineralization, cast and mold formation, and amber entrapment.

Isotopic Ages

The determination of the age of a material based on the decay rate of its radioactive isotopes, crucial for understanding geological and archaeological timelines.