Which of the following is not a part of the Darwin's theory of evolution? (1) Natural selection (2) Struggle for existence (3) Survival of the fittest (4) Inheritance of acquired characters

Which of the following is not a part of the Darwin's theory of evolution? (1) Natural selection (2) Struggle for existence (3) Survival of the fittest (4) Inheritance of acquired characters
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(4) Inheritance of acquired characters Explanation: The inheritance of acquired characteristics is a hypothesis that physiological changes acquired over the life of an organism such as the enlargement of a muscle through repeated use) may be transmitted to offspring. It is also commonly referred to as the theory of adaptation equated with the evolutionary theory of French naturalist Jean-Baptiste Lamarck.'
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