Natural Selection. Darwin vs Lamarck. Lamarck - animals passed on acquired traits Darwin - individuals are selected for survival by combinations of traits. Darwin observed…. More individuals are born than live to reproduce individuals vary from one another
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the combination of Darwinian natural
selection and Mendelian genetics is
synthetic theory of evolution
small gradual changes within a population over time.
Amish of Lancaster, Pa. have recessive allele
causing dwarfism and higher proportion of
polydactylism (1:14 compared to 1:1000)
occurs when one species gives rise to two
species through reproductive isolation
proliferation of species by adaptation to new ways of life.