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12/7/2016
Figure 21.UN03
Figure 21.UN04
Observations
Individuals in a population
vary in their heritable
characteristics.
Organisms produce more
offspring than the
environment can support.
Inferences
Individuals that are well suited
to their environment tend to leave more
offspring than other individuals.
and
Over time, favorable traits
accumulate in the population.
© 2014 Pearson Education, Inc.
Figure 21.UN05
© 2014 Pearson Education, Inc.
© 2014 Pearson Education, Inc.