All Mammals Have Three Middle-Ear Bones Which Evolved From

question 49

Multiple Choice

All mammals have three middle-ear bones which evolved from:

• A)bones in the reptile jaw
• B)jaws of fishes
• C)wing bones of birds
• D)cartilage of shark skeletons

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Definitions:

Esther Duflo

A French-American economist known for her research in development economics and her work on poverty reduction through field experiments.

Abhijit Banerjee

An economist known for his research in the field of development economics, particularly for his work on poverty alleviation and for being a recipient of the Nobel Prize in Economics.

Consumption Decisions

Choices made by individuals, firms, or governments regarding which goods or services to allocate their limited resources toward.

Comparative Advantage

The ability of an individual, company, or country to produce a good or service at a lower opportunity cost than competitors. This concept is one of the fundamental principles of economics that helps explain the gains from trade.