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Questions and Answers
What is the primary mechanism by which evolution occurs?
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?
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?
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?
What is an example of a heritable trait?
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Why do individuals with favorable traits have higher viability?
Why do individuals with favorable traits have higher viability?
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What is the purpose of natural selection?
What is the purpose of natural selection?
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What is the result of having more offspring than can survive?
What is the result of having more offspring than can survive?
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What is the relationship between natural selection and evolution?
What is the relationship between natural selection and evolution?
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What is an example of natural selection?
What is an example of natural selection?
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What is the relationship between natural selection and the environment?
What is the relationship between natural selection and the environment?
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