What Does the Biological Species Concept Use as the Primary

question 20

Multiple Choice

What does the biological species concept use as the primary criterion for determining species boundaries?

• A) geographic isolation
• B) niche differences
• C) gene flow
• D) morphological similarity

---

Definitions:

Oligopolistic Firms

Companies that operate in a market structure characterized by a small number of competitors dominating the industry.

Cartel

An agreement among competing firms to control prices or exclude entry of a new competitor in a market, often leading to market inefficiency.

Nash Equilibrium

A concept in game theory where each player's strategy is optimal, given the strategies of all other players in the game.

Zero Marginal Cost

The cost incurred by producing one additional unit of a product or service when this cost is effectively zero, often due to technological advances.