1) ¿como se forma la capa de ozono y que la destuye? 2) ¿Cuál es la función del campo magnético terrestre, de que nos protege?

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.

It's definitely not b or c, it's either a or d but i can't figure out which one sorey

The correct answer would be primary