The concept 'Survival of the Fittest' was proposed in which theory of Human Evolution?
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Darwin's theory of evolution by natural selection is centered around the idea that the fittest individuals survive and reproduce, passing their advantageous traits.
The phrase "Survival of the Fittest" was coined by Herbert Spencer and applied by Charles Darwin to describe the mechanism of natural selection in the theory of evolution. It emphasizes that those organisms best adapted to their environment are more likely to survive and reproduce. Final Answer:
\[
\boxed{\text{The correct answer is (1) Darwinism.}}
\]