Why is the African savanna a good example of the three scientific principles of sustainability in action

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

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

Eutrophication caused by human nutrient pollution.