Evolutionary Mechanisms

Which of the following is the correct definition of natural selection?

• The idea that organisms less equipped for their environment tend to survive longer

• The idea that organisms more well equipped for their environment tend to survive longer

• The idea that organisms more well equipped for their environment tend to not survive

• None.

Which of the following represents gene flow?

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Which of the following represents genetic drift?

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Match the following

• Gene Flow

• A sudden change in one or more characteristics due to a change in a gene

• Non-Random Mating

• Random chance; small population

• Migration

• the movement of genes into or out of a population

• Mutation

• Occurs due to physical difference as a result of a genetic difference

• Genetic Drift

• The movement of organisms from one place to another

Which of the following best describes what the image represents?

• Genetic Drift

• Migration

• Mutation

• Natural Selection

Blue catfish are going extinct. A dam in a lake full of blue catfish bursts due to poor engineering and kills some of the blue catfish. This is an example of:

• Natural Selection

• Gene Flow

• Mutation

• Genetic Drift

Green rhinocerous beetles are some of the biggest beetles to exist on Earth. A green rhinocerous beetle leaves its group and wonders over to another group that only has red rhinocerous beetles and mates with the red beetles. This is an example of:

• Gene Flow

• Genetic Drift

• Mutation

• Migration

Adaptations can be:

• camouflage

• ability to survive cold weather

• hunting skills

• all of the above

What is most likely to happen to moth populations in the picture shown?

• Light moths--hunted easily, dark moths--population increase

• Dark moths--hunted easily, dark moths--population increase

• Light moths--hunted easily, light moths--population increase

• Lights moths will change their color to match dark moths.

TRUE or FALSE: Natural selection will still occur if individuals are exactly the same.

• TRUE

• FALSE