Which Principle of Heat Exchange Is the Most Important Explanation

question 12

Multiple Choice

Which principle of heat exchange is the most important explanation for why birds look larger in colder weather because they fluff their feathers?

• A) Fluffing creates a pocket of air near the bird that acts as insulation.
• B) Fluffing decreases the surface area/volume ratio, thus decreasing the amount of heat lost to the environment.
• C) Fluffing feathers results in less cooling by radiation since feathers emit less infrared radiation than other tissues do.
• D) Fluffing decreases the amount of heat lost by conduction when the bird makes contact with cold objects in its environment.

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Definitions:

Instrumental Values

Principles or beliefs that are means to an end, serving as tools or methods to achieve something.

Cognitive Dissonance

The psychological unease felt by a person who simultaneously maintains two or more conflicting beliefs, ideas, or values.

High Priority

A task, project, or issue that is deemed more important than others and thus requires immediate attention or action.

Evaluation

involves assessing or judging the value, quality, or performance of someone or something.