A Barnacle Must Attach to a Hard Surface Such as Rocks

question 29

Multiple Choice

A barnacle must attach to a hard surface such as rocks, shells, or whales. When the barnacle attaches to the whale, it benefits by having a place to stay, while the whale is unaffected. This is an example of what type of relationship?

• A)Symbiosis
• B)Predation
• C)Commensalism
• D)Parasitism

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Definitions:

Obtained Value

The real outcome or result attained through a statistical examination or experiment.

Within-groups Df

Degrees of freedom within groups in an analysis of variance (ANOVA), related to the variability of observations within each group.

Between-groups Df

Degrees of freedom associated with the variance between the groups in an ANOVA test, useful in determining the variability attributable to the difference between groups.

Simple Analysis of Variance

A statistical method used to compare the means of two or more groups to see if there is a significant difference between them.