The diagram shows a general representation of an energy pyramid for a living system. as energy flow through the pyramid, a. 25% of energy is gained at each increasing trophic level. b. 10% of energy is lost at each increasing trophic level. c. energy remains the same at each trophic level. d. energy increases at each trophic level.

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.