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Natural selection quiz

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Questions and Answers

What is the primary mechanism by which evolution occurs?

Natural selection (correct)

Descent with modification

Artificial selection

Genetic drift

What is required for natural selection to occur?

Only variation in characteristics between offspring

Only heritable traits

Variation in characteristics and heritable traits

Variation in characteristics, heritable traits, and competition for limited resources (correct)

What is the result of natural selection on a specific phenotype?

Decreased survival rate

Variable effect on survival rate

No effect on survival rate

Increased survival rate (correct)

What is an example of a heritable trait?

All of the above Signup and view all the answers

Why do individuals with favorable traits have higher viability?

Because they are more likely to survive Signup and view all the answers

What is the purpose of natural selection?

To select for heritable traits best suited to the environment Signup and view all the answers

What is the result of having more offspring than can survive?

Competition for limited resources Signup and view all the answers

What is the relationship between natural selection and evolution?

Natural selection is the mechanism by which evolution occurs Signup and view all the answers

What is an example of natural selection?

Both A and B Signup and view all the answers

What is the relationship between natural selection and the environment?

Natural selection is influenced by the environment Signup and view all the answers