In multicellular organisms some cells need to be large because of the functions they perform (eg. nerve cells, muscle cells). What shape would be most desirable for these larger cells to be able to carry out the necessary rates of diffusion?

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

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