Costa Rica Is Considered a Superpower of Biodiversity,with an Estimated

question 49

Multiple Choice

Costa Rica is considered a superpower of biodiversity,with an estimated 500,000 plant and animal species.This biodiversity is chiefly a result of the ____.

• A) country's small size
• B) country's geographic location and its government's strong conservation efforts
• C) lack of deforestation throughout the country's history
• D) careful use of natural resources by its indigenous people throughout its history
• E) government subsidies for the conversion of forestland to rangeland

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Definitions:

Pepsinogen

The inactive precursor of pepsin, an enzyme that breaks down proteins in the stomach.

Ileocecal Valve

A valve located between the ileum (last portion of the small intestine) and the cecum (first part of the large intestine) that controls the flow of digested food.

Pyloric Sphincter

A muscular valve regulating the flow of food from the stomach to the duodenum of the small intestine.

Anal Sphincter

A circular muscle that surrounds the anus, controlling the passage of feces out of the body through the anal opening.