Eighteen-month-old mickey is visiting a theme park for the first time. at the park, he sees some zebras, an animal with which he is unfamiliar. despite this, he looks at the animals and shouts, "look at the horses! " he had previously formed a mental schema for horses. piaget would say that mickey’s reaction best demonstrates the concept of
a. accommodation.
b. reversibility. c. assimilation.
d. formal thought.

assimilation

Explanation:

Jean Piaget was a Swiss psychologist who was born on August 9, 1896 and is  most notably recognized for his work on child development. According to my research on Piaget's studies, I can say that based on the information provided within the question he would most likely say that Mickey's reaction best demonstrates the concept of assimilation. This concept is defined as a cognitive process that controls how we take in new information and add that new information into our existing knowledge database.

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