In an Experiment on Biological Preparedness in Chaffinches, Stevenson-Hinde Found

question 57

Multiple Choice

In an experiment on biological preparedness in chaffinches, Stevenson-Hinde found that _____ was an effective reinforcer for training chaffinches to _____.

• A) food; perch in a certain spot
• B) food; key-peck
• C) the sound of recorded chaffinch songs; perch in a certain spot
• D) Both b and c are correct.

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Definitions:

Contribution Margin

The amount of revenue remaining after deducting variable costs, used to cover fixed costs and contribute to profit.

Variable Expenses

Expenditures that fluctuate in alignment with the quantity of production or sales figures, like labor costs and materials used.

Traceable Fixed Expenses

Fixed expenses that can be directly linked to a specific segment of a business and would disappear if the segment did not exist.

Contribution Margin

The difference between the sales revenue of a product and its variable costs, indicating how much contributes to covering fixed costs and generating profit.