Why Is Gas Exchange in an Aquatic Environment More Challenging

question 44

Multiple Choice

Why is gas exchange in an aquatic environment more challenging than gas exchange in the air?

• A) The large surface area of gills makes them more susceptible to drying out.
• B) Less oxygen is available in water than in air.
• C) Carbon dioxide is eliminated by active transport in an aquatic environment.
• D) The countercurrent exchange process limits the amount of oxygen that can be extracted from water.
• E) Gills have a poor blood supply.

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.

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Definitions:

Additional Satisfaction

The joy or utility gained from consuming one more unit of a good or service.

Diminishing Rate

A principle stating that as one factor of production increases, while others stay constant, the resulting increase in output will eventually decrease.

Total Utility

The entire pleasure derived from using a certain total volume of a good or service.

Total Utility

Total utility is the total satisfaction or benefit a consumer receives from consuming a particular quantity of goods or services.