Campbell Biology In Focus
Campbell Biology In Focus
2nd Edition
ISBN: 9780134203072
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 22, Problem 3TYU

According to the punctuated equilibria model,

  1. A.    natural selection is unimportant as a mechanism of evolution.
  2. B.     given enough time, most existing species will branch gradually into new species.
  3. C.     most evolution occurs in sympatric populations.
  4. D.    most new species accumulate their unique features relatively rapidly as they come into existence, then change little for the rest of their duration as a species.
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Mendelian Genetics and Punnett Squares; Author: Professor Dave Explains;https://www.youtube.com/watch?v=3f_eisNPpnc;License: Standard YouTube License, CC-BY
The Evolution of Populations: Natural Selection, Genetic Drift, and Gene Flow; Author: Professor Dave Explains;https://www.youtube.com/watch?v=SRWXEMlI0_U;License: Standard YouTube License, CC-BY