The structure is a phospholipid bilayer. There are many phospholipids which contain a water loving phosphate end and a water hating lipid (fatty) end. The phosphate ends all point out words while the fatty ends are inside.
The purpose is protection of the cell as well as allowing certain molecules to enter and exit the cell
Answer:
Plant roots break a rock into pieces
Explanation:
This type of weathering is mechanical/organic and weathering is when something is being broken down or changed.
