So the plant will grow faster in better soil.
is important to the transmission of nerve impulses.
a) Zinc
b) Calcium
c) Sodium
d) Iron

Answer:
D) produces social solidarity
Explanation:
It arranges as 2 layers of phospholipids where the hydrophilic(water-loving) heads face toward the outside and the hydrophobic(water-hating) tails are on the inside. They arrange like this to allow for selective permeability which is why this is what a cell's plasma membrane is made up of.