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:

Positive Symptoms

In psychiatry, symptoms that are added to a person's behavior, such as hallucinations or delusions seen in schizophrenia, unlike negative symptoms that involve a loss of functions.

Schizophrenia

A psychiatric disorder characterized by disturbances in thought, perception, and behavior, including delusions, hallucinations, and disorganized speech.

Pregnant

A state of carrying a developing embryo or fetus within the female body.

Odds

A measure of the likelihood of a particular outcome, compared to the likelihood of alternative outcomes.