Use the Following Figure to Answer the Question

question 63

Multiple Choice

Use the following figure to answer the question.

Diagram of a food web (arrows represent energy flow and letters represent species)
If the figure represents a marine food web, zooplankton are most likely ________.

• A) A
• B) B
• C) C
• D) E

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Definitions:

Critical Value

The threshold in a statistical test such that if the calculated test statistic is beyond this point, the null hypothesis is rejected.

Chi-Square Tests

Statistical tests used to determine if there is a significant difference between the expected frequencies and the observed frequencies in one or more categories.

Test Statistic

A value calculated from sample data used to evaluate the credibility of a hypothesis about a population.

Expected Frequency

The predicted number of times an event is anticipated to occur within a specified period based on probability.