Population bottlenecks. but their genes still carry the marks of this bottleneck: they have much less genetic variation than a population of southern elephant seals that was not so intensely hunted.
The answers that apply are;
- boiling pasta for dinner
- watering the front lawn
- brushing teeth before bed
Around the homestead, water is not used in an industrial scale.
Basically, the cell wouldn't be able to "breathe," as the mitochondria is where the respiratory functions of the cell happens. No energy would be produced, and then the cell would stop moving and die.