Is it true that a deficiency of a trace mineral is just as damaging to your health as a deficiency of a major mineral?

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

How does secondary succession differ from primary succession?