What Results When Traits Are Acted on by Sexual Selection

question 11

Multiple Choice

What results when traits are acted on by sexual selection?

• A) The traits increase fertility.
• B) The traits occur mostly in females.
• C) The traits sometimes appear to have no relation to fitness.
• D) The traits occur in plants but not in animals.

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Definitions:

Break-Even Point

The point at which total costs and total revenue are equal, resulting in no net gain or loss.

Variable Cost

A cost that changes in proportion to the level of output or activity.

Variable Costs

Costs that vary directly with the level of production or output, such as materials and labor.

Contribution Margin

The selling price per unit, minus the variable cost per unit, used to determine the profitability of products or services.