Anne Is Investigating the Timing of the Onset of Puberty

question 122

Multiple Choice

Anne is investigating the timing of the onset of puberty in a large sample of adolescents.In her sample, she finds the correlation for identical twin pairs is almost twice that of fraternal twin pairs, which in turn, is almost twice that of singleton siblings.Based on this information, what can you conclude regarding the potential cause of pubertal timing?

• A)Heredity plays a strong role in physical maturation.
• B)Environmental factors play a strong role in physical maturation.
• C)Genetic regulation of hormones is the trigger for physical maturation.
• D)Environmental factors play a primary role in physical maturation.

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Definitions:

LRAC Curve

Long-Run Average Cost Curve, showing the lowest average cost at which a firm can produce any given level of output in the long term.

Natural Monopolist

A type of monopoly that occurs when a single firm can supply a product or service to an entire market at a lower cost than two or more firms could.

Market Demand Curve

A graphical representation that shows the relationship between the price of a good and the total quantity demanded by all consumers in the market.

Barrier To Entry

Factors that make it difficult for new firms to enter a market, such as high initial costs or stringent regulations.