The six Kingdoms : Plants, Animals, Protists, Fungi, Archaebacteria, and Eubacteria.
I hope this Helps!
Well for one the impact of age of course, is not limited to organisms. overtime your DNA accumulates damage.
The Mitochondria breaks down sugar to supply and power the cell
Remember that the mitochondria is the powerhouse of the cell, without it, the cell wouldn't be able to function
You didn't put any answer choices, but air and water are generally the greatest.