Exploring the 4 Principles of Natural Selection

What is the process called that drives evolution?

• Gene flow

• Natural selection

• Genetic drift

• Mutation

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Why do species tend to produce more offspring than can survive?

• To ensure some survive to adulthood

• To dominate their habitat

• To consume more resources

• To increase genetic variation

How does overproduction contribute to natural selection?

• By ensuring all offspring survive

• By creating competition for resources

• By guaranteeing genetic diversity

• By allowing some offspring to reach adulthood

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What causes individuals within a population to differ from each other?

• Their habitat

• Random genetic variations or mutations

• Their diet

• Their age

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What principle explains the differences among individuals in a population?

• Selection

• Adaptation

• Variation

• Overproduction

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Why is variation important in natural selection?

• It ensures all individuals are identical

• It stabilizes the population size

• It decreases the survival rate

• It provides a basis for adaptation

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Which fish is more likely to survive in seaweed?

• Jerry with stripes

• Linda without stripes

• Neither

• Both equally

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What is an adaptation in the context of natural selection?

• A learned behavior

• A temporary change

• A choice made by the organism

• A physical or behavioral trait that increases survival

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What happens to organisms with beneficial adaptations?

• They are more likely to reproduce

• They change their habitat

• They migrate

• They are less likely to survive

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What ultimately happens to traits that provide a survival advantage?

• They have no effect on the population

• They become more common in the population

• They become less common

• They disappear over time

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