The Swim Bladder of Many Fishes That Evolved from a Lunglike

question 81

Multiple Choice

The swim bladder of many fishes that evolved from a lunglike sac has the important function of

• A) aiding in prey capture.
• B) controlling swimming speed.
• C) controlling buoyancy.
• D) aiding in reproduction.
• E) providing balance.

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Definitions:

Labor Productivity

Output per unit of labor; measured as real GDP divided by the hours of labor employed to produce that output.

Production Possibilities Frontier (PPF)

A curve showing alternative combinations of goods that can be produced when available resources are used efficiently; a boundary line between inefficient and unattainable combinations.

Output Combination

An output combination refers to the mixture of different goods and/or services produced by an economy or firm within a certain period, highlighting the diversity in production.

Human Capital

The collective skills, knowledge, or other intangible assets of individuals that can be used to create economic value for the individuals, their employers, or the community.