Gerard and Zoya work as teachers at an elementary school. Even though they are equally qualified, Gerard is being assigned more responsibilities and eventually becomes the school principal while Zoya continues to work as a teacher. This is an example of existing in the educational institution.

Glass escalator

Explanation:

Glass escalator is the concept that describes about promotion or advancement of men to a higher-level position in a female dominated working sector.In this field, men are chosen for the advanced role over women easily for advantages.This concept can be seen in professions like nursing, teaching field, social work etc.

According to the question, Gerald is promoted to the principal post over Zoya even though both had equal qualification describes glass escalator concept.Gerald is given advancement as he is a man in women-dominated field of schooling and education.

answer; ///the (iroquois) cultures was made up of several groups, who spoke a common language