There Is Some Evidence That Reptiles Called Cynodonts May Have

question 40

Multiple Choice

There is some evidence that reptiles called cynodonts may have had whisker-like hairs around their mouths. If this is true, then what can be properly said of hair?

• A) It is a shared derived character of mammals, even if cynodonts continue to be classified as reptiles.
• B) It is a shared derived character of the amniote clade and not of the mammal clade.
• C) It is a shared ancestral character of the amniote clade, but only if cynodonts are reclassified as mammals.
• D) It is a shared derived character of the mammals, but only if cynodonts are reclassified as mammals.

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Definitions:

Diminishing Marginal Utility

The decrease in satisfaction or utility that a person derives from consuming each additional unit of a good or service.

Demand Curves

A graphical representation that shows the relationship between the price of a product and the quantity of the product that consumers are willing and able to purchase at various prices.

Marginal Utility

The extra value or satisfaction garnered by a consumer with the acquisition of one more unit of a good or service.

Total Utility

The overall satisfaction or happiness received from consuming a certain amount of goods or services.