Questions

The Big 12 Championship Game is a college football game held by the Big 12 Conference. The game will be played at AT&T Stadium in Arlington, Texas until at least 2021. The game was played each year since the conference's formation in 1996.

A duty or task that needs to be fulfilled is a responsibility that needs to happen.

For example : a doctor has his own task or responsibility, a police, a lawyer, etc... all have their own responsibilities.  

Mitochondria are organelles that generate most of the chemical energy needed to power the cell's biochemical reactions. Hence, thay are also called as Power house of the cell.

* Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).