Ten-year-old casey refuses to line up at the door after recess. instead, he shoves past the other students, yelling that he has to be the first one in the door. casey is displaying a deficit.

performance                                                          

Explanation:

Performance deficit: The term 'performance deficit' is defined as an individual's or student's propensity to know the skills required to perform a particular behavior or task but unable to use those skills consistently.

In other words, a student has the capability to use a particular skill to perform a task yet not using that skill.

In the question above, Casey is displaying a performance deficit.

it was known as the aztec empire. the capital was formally named tenochtitlan. *hope this .

answer; when the government fails to protect the fundamental rights of the people;