Tunica ________, the Middle Layer of a Typical Blood Vessel

question 283

Multiple Choice

Tunica ________, the middle layer of a typical blood vessel, contains smooth muscle and elastic fibers.

• A) intima
• B) externa
• C) media
• D) adventitia

---

Definitions:

Energy Efficiency

The measure of how well energy is converted into desired outputs, with higher efficiency indicating less energy waste.

U.S. Economy

The economic system of the United States, characterized by a mixed economy that supports free market activities while also having government intervention in certain sectors.

Goods And Services

The products (goods) and activities (services) offered in the market for purchase, representing the output of an economy’s production.

Operating Costs

Operating costs are expenses associated with the day-to-day functions of a business, including costs for goods, services, rent, and salaries.