Lenin's most significant contribution to Marxist thought was the development of the idea that

Without a revolutionary theory, there can be no revolutionary movement

Explanation:

Lenin's most significant contribution to Marxist thought was the development of the idea that "Without a revolutionary theory, there can be no revolutionary movement."

This evident in the fact that it was the Lenin and the followers of his philosophy who used the idea to bring about the first successful communist revolution in Russia around 1917.

This eventually led to the creation of the first contemporary totalitarian state in the Soviet Union.

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.

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