The Only Known Population of a Reptile Species Lives on an African

question 24

Multiple Choice

The only known population of a reptile species lives on an African mountain.The population is relatively large,but no close relatives of this species are known.Suppose you could stop all mutations within the population and all emigration out of this population.Which statement best describes the probable future of this population?

• A)The population will decline and become extinct after a few generations because of excessive inbreeding.
• B)Evolution will continue as natural selection acts on the genetic variability that exists in the population.
• C)Although the population will cease to change, it may survive for as long as the environment remains constant.
• D)Genetic drift will cause major evolutionary changes in the population.

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Definitions:

Discounted Payback Period

The time it takes for the cash flows from an investment to equal the initial cost of the investment, accounting for the time value of money.

Variable Cost

Charges that directly correspond to changes in the amount of business activity or production levels.

Fixed Costs

Expenses like rent, salaries, and insurance that stay the same no matter the production or sales volume.

Operating Cash Flow

Cash generated from a company's normal business operations, indicating whether a company can maintain and grow its operations.