Which of the Following Scenarios Best Describes the Change in the Equilibrium

question 147

Multiple Choice

Which of the following scenarios best describes the change in the equilibrium shown in the accompanying graph?

• A) firms entering the market
• B) firms leaving the market
• C) buyers entering the market
• D) buyers leaving the market
• E) an input cost decreasing

---

Definitions:

Tonus

The state of partial contraction or tension of muscles at rest, maintaining posture and readiness for action.

Motor Units

The functional units of the neuromuscular system, consisting of a motor neuron and all the muscle fibers it innervates, responsible for muscle contraction.

Electromyography

A diagnostic procedure to assess the health of muscles and the nerve cells that control them, by measuring the electrical activity produced by muscles.

Skeletal

Relating to or constituting the bony framework of the body; involved in physical support and movement.