Why Has Natural Selection Favored the Evolution of Double Circulation

question 34

Multiple Choice

Why has natural selection favored the evolution of double circulation in birds and mammals?

• A) because they are larger than reptiles and amphibians
• B) because they use more energy than equivalent-sized reptiles and amphibians
• C) because they have more viscous blood than reptiles and amphibians
• D) because they cannot obtain as much oxygen from the air as reptiles and amphibians

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Definitions:

Compensation Cost

The total amount an employer spends on an employee's salary, benefits, and other forms of remuneration.

Average Cost

The total cost of production divided by the number of units produced.

Hidden-cost Fallacy

This fallacy occurs when not all costs associated with a decision or action are considered, leading to an underestimation of the true cost.

Overhead

The ongoing administrative, operational, or general business expenses that are not directly tied to the production of goods or services.