In Order to Obtain O₂, Water-Breathers Face a Substantially Greater

question 59

Multiple Choice

In order to obtain O₂, water-breathers face a substantially greater challenge compared to air-breathers. Which of the following is not a reason for this difference?

• A) Water contains less O₂ per liter than air does.
• B) Water is denser than air.
• C) Water can become anoxic more readily than air can.
• D) Oxygen diffuses more slowly across respiratory surfaces in water than in air.

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Definitions:

With Interaction

In statistical analysis, refers to a model that includes terms for interactions between variables to assess if the effect of one variable on the response variable changes at different levels of another variable.

Statistician

A professional or expert in the field of statistics, specializing in the collection, analysis, interpretation, and presentation of numerical data.

Linearly Related

Describes a condition where there exists a straight-line relationship between two variables, indicating that a change in one variable is associated with a proportional change in another.

Predictor Variables

In statistical models, variables that are used to predict the value of another variable, typically the outcome or response variable.