The answer is bacterial cell
Pure water has a pH of 7, while acidic solutions will ALWAYS have a pH lower that 7. ~Your Welcome
True. The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a "magnet."
Stomach contracting to mix foods with enzymes
