When Two Populations Have Undergone Divergence in Allopatry Long Enough

question 122

True/False

When two populations have undergone divergence in allopatry long enough to be unable to produce fertile offspring, then they are different enough to be considered two different species.

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Definitions:

Variable Costing

A bookkeeping approach that incorporates only variable production expenses such as direct materials, direct labor, and variable manufacturing overhead into the costs of products.

Net Operating Income

A company's operating income after all operating expenses have been deducted from total revenue.

Variable Costing

A costing method that includes only variable costs - costs that vary with production levels - in the cost of goods sold and excludes fixed costs.

Net Operating Income

The profit generated from a company's everyday business operations, indicating the efficiency of management.