Isotopes are different versions of an element or different versions of a certain kind of atom. In order for an atom to be an isotope, it must have the same number of protons because the protons determine what kind of element it is. Also, there must be a different number of neutrons in the core the atom.
<u><em>Mitosis</em></u> is the division in which two identical daughter cells are generated from a mother cell
Metabolism, I think.
It’s the sum of the chemical reactions that take place within each cell of a living organism and that provide energy for vital processes and for synthesizing new organic material.
Kidney preserve or excrete H⁺ ion and HCO₃⁻ ion to regulate the blood pH.
