Why is the human brain not considered to be a living organism

Which event would lead to primary succession of a forest?

What’s the student’s scientific question

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