In the food chain make their own food . producers primary consumers secondary consumers decomposers

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

Atissue is a group of connected cells that have a similar function within an organism.