Two-year-old iris has just seen a cow for the first time. having never seen one before, she searched her memory, came up with the only four-legged animal she knows, and announced "doggy! " this is an example of

assimilation                                                        

Explanation:

Assimilation: In psychology, the term assimilation is a part of the theory of the cognitive development given by Jean Piaget, and is described as a cognitive process that is responsible for how a person incorporates new information into already existing knowledge.

In the process of assimilation, a person learns new things and then comprehend it. In other words, the process of assimilation adapts a piece of new information that fits into the existing schema.

In the question above, the given statement is an example of assimilation.

the answer is true!