Which level of organization is represented by the eye

Which is the correct formula for photosynthesis

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?