What evidence challenges the view that races are biologically defined types? what evidence would have to exist to prove that the human species is genetically divided into races?

Might need you in a few weeks c:

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

This movement is also referred to as  glacial plucking