The Mechanism Whereby Buoyancy Is Achieved in Different Kinds of Fishes

question 58

Multiple Choice

The mechanism whereby buoyancy is achieved in different kinds of fishes is

• A) through the presence of a large, oily liver when a swim bladder is not present.
• B) through the presence of a swim bladder that is kept filled as the fish periodically swims to the surface and gulps air.
• C) through the presence of a swim bladder that is regulated internally by structures that add or remove gas from the bladder by capillary beds.
• D) All of the choices are methods for achieving buoyancy.
• E) None of the choices are correct.

---

Definitions:

Voter Choice

The decision made by voters when casting their ballots in an election, reflecting their personal preferences, beliefs, and considerations of candidate or party policies.

Public Opinion

The aggregate of individual attitudes or beliefs held by the adult population on a particular issue, policy, or event.

1930s

The decade from 1930 to 1939, marked by the Great Depression, economic hardship worldwide, and the rise of totalitarian regimes.

Opinion Polling

A method of collecting information about the views or beliefs of a population by asking a random sample of individuals questions and extrapolating the results to the larger group.