Large Veins Have ________ to Prevent the Backflow of Blood

question 85

Multiple Choice

Large veins have ________ to prevent the backflow of blood.

• A) tunics
• B) sphincters
• C) valves
• D) shunts

---

Definitions:

Portfolio of Stocks

A collection of stocks held by an individual or an institution.

Seasoned Equity Offering

The process by which a publicly-traded company issues additional shares of stock to raise capital, typically after the initial public offering.

Initial Public Offering

The first time that the stock of a private company is offered to the public.

Secondary-market Transaction

The buying and selling of previously issued securities, such as stocks and bonds, among investors without involving the issuing companies.