Government the president shall have power to fill up all vacancies that may happen during the recess of the senate by granting commissions which shall expire at the end of the next session.^3which principle is illustrated by this excerpt from the constitution? a. popular sovereigntyb. checks and balancesc. rule of lawd. republicanism

it is checks and balances apex

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.