Aquatic Animals That Lack Specialized Internal Organs for Transporting Respiratory

question 37

Multiple Choice

Aquatic animals that lack specialized internal organs for transporting respiratory gases

• A) may have flat,leaflike bodies.
• B) get rid of CO₂ by diffusion.
• C) may have cells organized around extensive internal passageways through which water circulates.
• D) have cells that are all close to the respiratory medium.
• E) All of the above

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Definitions:

Null Hypothesis

A default hypothesis that there is no significant difference or effect, used as a starting point for statistical hypothesis testing.

Alternative Hypotheses

A statement that directly contradicts the null hypothesis, suggesting that there is a significant difference or effect.

Population Mean

The average value of all the members of a population.

F Table

A table used in statistics to determine the critical values of the F-distribution, useful in analysis of variance (ANOVA).