Unit 3- Diversity and Evolution

Which of the following best describes how fossil evidence supports the scientific theory of evolution?

• Fossils show that all species have remained unchanged over time.

• Fossils provide evidence that living things evolved from earlier species.

• Fossils are only found in certain parts of the world, indicating isolated evolution.

• Fossils are not reliable evidence for evolution.

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DOK Level 1: Recall

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How does genetic variation contribute to the process of natural selection?

• It ensures that all individuals in a population are identical.

• It provides differences among individuals that can lead to some being more suited to the environment.

• It prevents any changes in a population over time.

• It causes all individuals to have the same chance of survival.

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DOK Level 2: Skill/Concept

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Explain how the inability of a species to adapt to a changing environment might lead to its extinction.

• The species will evolve new traits immediately.

• The species will migrate to a new environment.

• The species may not survive if it cannot adapt to new conditions.

• The species will become more diverse.

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DOK Level 2: Skill/Concept

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Which of the following is an example of how scientific knowledge has changed due to new evidence?

• The belief that the Earth is flat.

• The discovery of DNA structure leading to new understandings of genetics.

• The idea that the sun revolves around the Earth.

• The notion that all species were created at the same time.

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DOK Level 3: Strategic Thinking

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What role does empirical evidence play in the development of scientific theories?

• It is not necessary for scientific theories.

• It provides a cumulative body of observations that support scientific explanations.

• It is only used to disprove scientific theories.

• It is based on opinions rather than observations.

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DOK Level 1: Recall

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Which of the following scenarios best illustrates natural selection?

• A species of bird develops a new song.

• A population of insects becomes resistant to a pesticide over several generations.

• A plant species grows taller in a single season.

• A mammal species changes its diet overnight.

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DOK Level 2: Skill/Concept

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How can fossil evidence be used to support the theory of evolution?

• By showing that all species appeared at the same time.

• By demonstrating a chronological sequence of species development.

• By proving that species do not change over time.

• By indicating that species are unrelated.

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DOK Level 3: Strategic Thinking

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What is a possible consequence for a species that cannot adapt to environmental changes?

• The species will become more diverse.

• The species will thrive in the new environment.

• The species may face extinction.

• The species will evolve new traits immediately.

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DOK Level 1: Recall

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Which of the following best explains the relationship between genetic variation and evolution?

• Genetic variation decreases the chances of evolution.

• Genetic variation is the basis for natural selection, leading to evolution.

• Genetic variation has no impact on evolution.

• Genetic variation ensures that all individuals are identical.

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DOK Level 2: Skill/Concept

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How does the scientific community contribute to the development of scientific knowledge?

• By ignoring new evidence.

• Through debate and confirmation of findings.

• By accepting all theories without question.

• By relying solely on historical beliefs.

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DOK Level 1: Recall

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