The Vertebrates in Which Blood Flows Directly from Respiratory Organs

question 40

Multiple Choice

The vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart are the ________.

• A) amphibians
• B) birds
• C) fishes
• D) mammals
• E) reptiles

---

Definitions:

Nash Equilibrium

A concept in game theory where each player's strategy is optimal, considering the choices of other players. It represents a situation where no participant can gain by unilaterally changing their strategy.

Dominant Strategy

A strategy in game theory that is the best action for a player irrespective of what the opponent does.

Tit-For-Tat

A strategy in game theory where a participant replicates the opponent's previous action, as in a retaliatory or cooperative manner.

Repeated Game

A game-theory concept involving the same game played multiple times, where outcomes can be affected by previous games.