Which of These Should Decline in Hybrid Zones Where Reinforcement

question 37

Multiple Choice

Which of these should decline in hybrid zones where reinforcement is occurring?

• A) gene flow between distinct gene pools
• B) speciation
• C) the genetic distinctness of two gene pools
• D) mutation rate
• E) hybrid sterility

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Definitions:

Variable Overhead Cost

Costs that vary with the level of production output, such as supplies and utilities for manufacture.

Variable Costing

An accounting method that includes only variable production costs (direct materials, direct labor, and variable manufacturing overhead) in the cost of goods sold, excluding fixed overhead costs.

Absorption Costing

A cost accounting method that includes all manufacturing costs - direct materials, direct labor, and both variable and fixed overhead - as part of the cost of a finished product.

Net Income

A company's overall profit after subtracting expenses and taxes from its revenue.