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Charles Darwin studied several theories of evolution from many scientists to aid in his formulation of his theory of natural selection. Darwin was particularly interested in Thomas Robert Malthus’ phrase of the “struggle for existence” within a population from his publication An Essay on the Principle of Population.

From Malthus’ phase, what was the most likely connection Darwin used to formulate his theory of evolution by natural selection?


As a population grows, there is a struggle and competition between all individuals in that population to survive and reproduce.


Different species compete with each other for natural resources.


All individuals of a species are adapted to survive in their environment.


Populations of different species living in the same area will adapt in the same manner to survive in that environment.

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