Fatter Sociable Weaver Birds Spend More Time Foraging Where They

question 7

Multiple Choice

Fatter sociable weaver birds spend more time foraging where they are vulnerable to predation, are more attractive to predators, and are less likely to escape an attack. Conversely, thin birds risk starvation. Therefore, sociable weaver of an intermediate weight has a selective advantage. This is an example of ____ selection.

• A) frequent
• B) directional
• C) disruptive
• D) stabilizing
• E) mutational

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Definitions:

Nominal Rate

The stated interest rate of a financial instrument, without adjustment for inflation or compounding frequencies.

Compounded Monthly

The method of computing interest that includes both the original amount and the interest accrued over past months, applied each month.

Annual Nominal Rate

The annual rate of interest without taking into account the compounding of interest within that year, not reflecting the actual interest earned or paid.

Monthly Compounding

Interest calculation method where interest is added to the principal sum at the end of each month, compounding the amount over time.