Si tomas muestras del músculo de la pierna de una persona sedentaria y de una atleta ,cuál de ellas tendría un mayor número de mitocondrial ,porque

No creo que las mitocondrias se vean afectadas. la mitocondria produce energía para las células, sin importar el estado de la persona. Es por eso que las mitocondrias se conocen como la central eléctrica.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

true is the answer : )