Animal Diversity 7th Edition

Published by McGraw-Hill Education
ISBN 10: 0073524255
ISBN 13: 978-0-07352-425-2

Chapter 1 - Review Questions - Page 38: 12


Punctuated Equilibrium states that evolutionary change occurs through speciation, or relatively rapid bursts of change in a species. The speciation event is only a 'geological instant', taking up less than 1% of a species total existence. The Theory of Punctuated Equilibrium was proposed to explain discontinuous evolutionary changes observed throughout geological time.

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Theory proposed to explain gaps in evolutionary chains; rapid bursts of change in species
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