Which describes a similarly between capitalism and communism

There is a similarity between communism and capitalism.

Explanation:

One of the important similarity between communism and capitalism is both consider human beings as economic units. Like Marx all Communists believed that each person could be described by the forces of production and the role that person played in the economic system. How a man participates in the system to earn his living are defined by his social, political aspects.  

Similarly, capitalism also looks human beings as economic units. A man is motivated by self-interest and wishes to earn more wealth.  Thus, he plays a role in strengthening the economic system.

texas governor sam houston opposed secession, but was unable to prevent it. in this speech, given prior to lincoln's election, he presents the argument that slavery would be safer within the united states than outside of it. it was a prescient argument, and one held by several other southern leaders.

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i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.