A Decrease in the Predator Population That Consumes Herbivorous Animals

question 33

Multiple Choice

A decrease in the predator population that consumes herbivorous animals will cause ____.

• A) a decrease in food plant populations
• B) some food plant populations to explode out of control
• C) a general increase in food plant populations
• D) a loss of species diversity
• E) an increase in species diversity

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Definitions:

Experimenter's Manipulations

The deliberate alteration of variables by a researcher in an experiment to determine their effects on the outcome.

Standard Deviation

A commonly used measure of variability that indicates the average difference between scores in a distribution and their mean.

Arithmetic Mean

An average that is calculated by adding up a set of quantities and dividing the sum by the total number of quantities in the set.

Experimenter Effects

Influences that the experimenter's presence, behavior, or characteristics may have on the outcome of an experiment.