Macroevolution

Finches on the Galapagos Islands share similar characteristics because they share a common ancestor but have evolved into many different types of species to eat different foods in order to survive. What type of macroevolution is being described?

• adaptive radiation

• microevolution

• coevolution

• convergent evolution

• divergent evolution

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The idea that evolution happens with the accumulation of gradual changes in the population over time.

• stabilizing selection

• gradualism

• disruptive selection

• puntuated equilibrium

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What type of macroevolution is happening in the image?

• adaptive radiation

• microevolution

• coevolution

• convergent evolution

• divergent evolution

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Which best describes punctuated equilibrium?

• Speciation occurs due to natural selection

• Speciation occurs due to isolation

• Speciation occurs slowly in geologic time, followed by long periods with very fast evolutionary change.

• Speciation occurs suddenly and rapidly in geologic time, followed by long periods with little evolutionary change.

What is macroevolution?

• Adaptation to environmental changes

• Minor evolutionary changes within a species

• Major evolutionary changes over time

• Changes in the genetic makeup of a population

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Which of the following factors can explain large-scale patterns of macroevolution?

• None of the above

• Only genetic drift and natural selection

• Only mutation and migration

• Mutation, migration, genetic drift, and natural selection

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Which of the following is NOT a pattern of macroevolution?

• Lineage splitting

• Character changes

• Stasis

• Genetic drift

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What is stasis in the context of macroevolution?

• The extinction of a species

• A block of little or no evolutionary change

• The splitting of a lineage

• Rapid evolutionary change

Which of the following is an example of stasis?

• Trilobites changing body segments

• Coelacanths showing little morphological change

• Dinosaurs evolving into birds

• Mammals diversifying after the extinction of dinosaurs

Which of the following best describes macroevolution?

• A) Small changes within a species over time

• B) Large-scale evolutionary changes that occur over long periods

• C) Changes in the genetic makeup of a population

• D) Adaptation to environmental changes

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