Macroevolution

What is a mass extinction?

• When all the species in a particular area on earth suddenly go extinct

• When one species goes extinct due to habitat changes

• When multiple species from all over the earth suddenly go extinct

• When all life on earth is wiped out

A chicken is more closely related to a dinosaur than a lizard is.

• True

• False

What is one way biologists use evidence to infer evolutionary relationships between different species and groups?

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The large-scale events of evolution are called...

• Macroevolution

• Simplification

• Microevolution

• Gradual equilibrium

____ uses the presence or absence of recently evolved traits as the key to determining how closely 2 groups are related.

• Missing links

• Mass extinction

• Cladistics

• Gradual equilibrium

Which best describes punctuated equilibrium?

• Evolution occurs due to natural selection

• Evolution occurs due to isolation

• Evolution occurs slowly followed by long periods with very fast change

• Evolution occurs suddenly and rapidly followed by long periods of no change