What Is a Primary,common Evolutionary Feature of All Reptiles,mammals,and Birds

question 28

Multiple Choice

What is a primary,common evolutionary feature of all reptiles,mammals,and birds?

• A)teeth
• B)endothermic behavior
• C)gastrovascular cavity
• D)amniotic egg

---

Definitions:

Marginal Value

Marginal value represents the additional satisfaction or utility a consumer receives from consuming one more unit of a good or service, influencing their decision on how much of a product to purchase.

Marginal Analysis

An examination of the benefits and costs of certain activities or financial decisions.

Marginal Analysis

A technique used in economics to examine the benefits of adding one more unit of a good or service.

Marginal Cost

The cost incurred by producing one additional unit of a product or service.