A clock would be the answer.
Circadian Rhythms <span />
You can conserve the amount of soil you have by simply being a good steward of it. this would consist of planting plants in a cycle so that the minerals and nutrients that one plant draws out of the soil, the other replaces.
Answer:Caused by differences in the atmospheric pressure.
Explanation:
In a typical cell membrane, phospholipids arrange themselves to form a bilayer. This bilayer is a thin membrane which is considered a polar membrane composed of two layers of lipid molecules. This serves as a barrier around the containing cells.
