Out of the choices given, the step that caused an aerobic atmosphere during the history of Earth was the origin of photosynthetic prokaryotes. The correct answer will be D.
well usually cell wall helps to maintain the shape of the plant cell which plasma can't do.
both of them controls movement of substances into in and out of the cell.
<h3>sturuture:</h3>
plasma membrane contain outer membrane that surrounds the entire contents of cell and made of protein and phospholids.
cell wall are strong n rigid, made from celllouse fibre and fully permeable
2. less than
since mass and density are the same it would be less than since earth's gravity is more than the moon.
