Scientists in the nineteenth century who believed that species had not been created once and for all but had changed over time were called:
A) introspectionists.
B) structuralists.
C) evolutionists.
D) behaviorists.

Question

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Scientists in the nineteenth century who believed that species had not been created once and for all but had changed over time were called evolutionists. The term "evolution" was coined by Charles Darwin, who put forth the theory of natural selection to explain how species change over time.

Scientists in the Nineteenth Century Who Believed That Species Had