What do we collectively call the substances that the body uses for the growth, maintenance, and repair of its tissues?

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass

The answer is letter c

True but only in the south coastal areas during september and early october.