Sasha finds it funny that when she makes a silly face, her infant daughter, Penelope, tries to make the same silly face. As a psychologist who studies learning, Sasha knows that when Penelope observes Sasha’s face, Penelope’s is/are active.

Mirror neurons

Explanation:

The mirror neurons is a type of neuron that is triggered when the one person acts and observes the same thing from the other person. This behavior which the neuron mirrors of the person that copies the behavior of the other person. In the current situation, Sasha's daughter reflects the phenomenon of Neuron mirroring because she is copying the silly face behavior of her mother.

answer: a

explanation:

9) a & b

10) true.

11) false.

12) false.

13) true.

14) false.

15) true.

16) true.

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