Refer to Figure 55

question 8

Multiple Choice

Refer to Figure 55.1, a diagram of a food web, for the following questions. (Arrows represent energy flow and letters represent species.)

Figure 55.1
-If this were a marine food web, the smallest organism might be

• A)A.
• B)F.
• C)C.
• D)I.
• E)E.

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Definitions:

Stepwise Regression

A method of regression analysis in which variables are added or removed from a multivariable model in a step-by-step fashion based on statistical criteria.

F-statistic

A ratio used in statistical analysis to compare the variance across different groups to evaluate the significance of relationships between variables in a linear model.

P-value

A statistical measure that helps scientists and researchers determine the significance of their research results.

Odds Ratio

A measure of association between an exposure and an outcome, representing the odds that an event will occur given the exposure vs. the odds of the event occurring without the exposure.