Researchers Have Studied Pairs of Twins Who Were Reared in Separate

question 76

Multiple Choice

Researchers have studied pairs of twins who were reared in separate homes as children and then reunited as adults. Researchers examined their hobbies, habits, and preferences and found that

• A) neither type of twin pair was more similar than the other.
• B) dizygotic twins are more similar than monozygotic twins.
• C) monozygotic twins are more similar than dizygotic twins.
• D) dizygotic twins were physically more similar, but they did not have similar preferences.

---

Definitions:

Consumer Demand

The desire of purchasers, consumers, clients, or users to buy goods and services measured over time.

Competitive Industry

An industry characterized by many buyers and sellers, such that no single market participant has significant influence over prices.

Long-Run Equilibrium

A state in which all factors of production and costs are variable, and firms are making neither excess profit nor losses, typically reached over time.

Decreasing-Cost Industry

An industry in which expansion through the entry of firms lowers the prices that firms in the industry must pay for resources and therefore decreases their production costs.