Eukaryotic kingdoms:animilia (metazoa), plantae,Fungi and PROTISTA
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Neutrons have no electrical charge
D. sunlight.
Plants rely on the sun to give them the energy that they need for photosynthesis. All of the choices have something to do with photosynthesis but sunlight plays the main role in the process.
Not sure what you are asking :)
In both cases of where the electron transport chain is present in both processes of energy conservation, cellular respiration and photosynthesis, the ion that forms the concentration gradients as a result would be the Hydrogen ion concentration gradient.
