Which of the Following Conditions Is Not Necessary to Maintain

question 51

Multiple Choice

Which of the following conditions is not necessary to maintain the Hardy-Weinberg equilibrium?

• A)large gene pool
• B)no migration
• C)mutation
• D)random mating
• E)no selection

Analyze the effects of elasticity on business and economic decisions.

Describe the implications of elasticity on revenue for different types of goods.

Understand the role of substitutes and the broadness of market definition on elasticity.

Appreciate the theoretical underpinnings of supply and demand through the lens of elasticity.

---

Definitions:

Treadle Valve

A foot-operated valve that controls the flow of air in a pneumatic system, often used in braking systems of heavy vehicles.

Inversion Valve

A normally open air brake valve used for emergency applications of tractor brakes for a one-time stop during a total system failure. Hold-off air is dumped in relation to application pressure so that spring chamber force can effect emergency service braking. Incorporated in some modulating valves.

Tractor Protection Valve

A safety valve in commercial vehicles that prevents air loss in the tractor in the event of a trailer breakaway or air line failure.

FMVSS-121 Compliant

FMVSS-121 compliant means adhering to the Federal Motor Vehicle Safety Standard 121, relating to air brake systems in heavy vehicles.