When a Community Like the Tallgrass Prairie Is Maintained by Recurring

question 32

Multiple Choice

When a community like the tallgrass prairie is maintained by recurring disturbances such as periodic fires set by Native Americans or by lightning, a _________community exists.

• A) deciduous
• B) pioneer
• C) pine forest
• D) climax
• E) subclimax

Grasp the relationship between external validity and generalizability in research.

Comprehend the characteristics of scientific theories and the principle of parsimony.

Identify different types of measures used in psychological experiments.

Formulate hypothesis based on observed patterns and understand hypothesis testing.

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Definitions:

Gas Exchange

The biological process through which different gases (like oxygen and carbon dioxide) are transferred in opposite directions across an organism's respiratory membranes.

Pulmonary Surfactant

A complex mixture of lipids and proteins secreted by cells in the lungs, reducing surface tension and preventing the collapse of alveoli at the end of expiration.

Alveoli

Tiny air sacs in the lungs where gas exchange between the air and blood takes place.

Cohesive Forces

Attractive forces between similar molecules that hold a substance together, such as the attraction between water molecules.