After Several Years of Slow Economic Growth, World Demand for Petroleum

question 41

Multiple Choice

After several years of slow economic growth, world demand for petroleum began to rise rapidly in the 1990s. Much of the increase in demand was met by additional supplies from sources outside OPEC. OPEC during this time was unable to restrain output among members in its effort to lift oil prices. What best describes these events?

• A) The rise in demand shifted the demand for oil to the right. OPEC actions shifted the demand for oil back to the left.
• B) The rise in demand shifted the demand for oil to the right. As price rose, supply of oil also rose.
• C) The rise in demand shifted the demand for oil to the right. As price rose, quantity of oil supplied rose.
• D) The rise in demand reflects a movement down along the demand curve as supply shifted to the right when suppliers produced more oil.

Distinguish between different explanations (developmental, physiological, adaptive, and evolutionary) for bird song characteristics.

Evaluate research approaches and hypotheses testing in the study of bird song learning.

Explain the neurophysiological changes associated with song learning in birds.

Analyze the impact of environmental factors on the quality of bird song learning.

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Definitions:

Total Mean

The overall average of a set of numerical values computed by summing them up and dividing by the count of numbers.

Independent Variables

Variables in an experiment that are manipulated or changed to observe their effect on dependent variables, without being influenced by other factors in the experiment.

Interaction Effect

A phenomenon in statistical analysis where the effect of one variable on an outcome depends on the level of another variable.

Main Effects

Main effects refer to the individual impact of independent variables on a dependent variable in factorial design or analysis of variance (ANOVA).