Which of These Would a Paleontologist Be Most Likely to Do

question 57

Multiple Choice

Which of these would a paleontologist be most likely to do in order to determine whether a fossil represents a reptile or a mammal?

• A) Look for the presence of milk-producing glands.
• B) Look for the mammalian characteristics of a four-chambered heart and a diaphragm.
• C) Because mammals are eutherians, look for evidence of a placenta.
• D) Use molecular analysis to look for the protein keratin.
• E) Examine the teeth.

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Definitions:

Average Fixed Cost

The fixed costs of production (costs that do not change with the amount of output) divided by the quantity of output produced.

Profit-Maximizing Monopolist

A monopolist who adjusts the price or quantity of the product to maximize profit, considering the market's demand curve.

Equilibrium

A state in economic models where supply equals demand, leading to a stable market price and quantity.

Positive Profits

Financial gains realized when the total revenues of a business exceed its total costs.