In general, biographies have trended from what to what since their origin to today?

Biographies have changed significantly throughout their existence. At their origin, biographies were mainly meant to contribute to the study of history. Therefore, they dealt with characters that transformed the world, such as rulers. Moreover, they were usually less objective and more admiring, offering little criticism. Nowadays, biographies focus more on the individual experience of the person, and they offer a more critical and complex approach. They also include more common people, as opposed to rulers or politicians.

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

whose power in the senate is equal to the power of the speaker of the house?