Which of the following types of nerve fiber possesses the fastest speed of impulse propagation?A) type AB) type BC) type CD) type DE) type E

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

4, two dominant and two recessive