When Phospholipds are mixed with water , they spontaneously rearrange themselves to form the lowest free- energy configuration. this means that the hydrophohobic regions find ways to remove themselves from water , while the hydrophilic regions interact with water. the resulting structure is called a lipid bilayer.
The fatty acid tails are cluster together to form the phospholipid bilayer.
Explanation:
A phospholipid is an amphipathic molecule having a hydrophilic head and hydrophobic tail. Phospholipid consists of three components such as phosphate head, glycerol, and Fatty acid tails. The phosphate head is the water-loving side. It comes in contact with water. The fatty acid tail is a water-hating side. They cluster together and don't allow water to pass through them. Thus another phospholipid layer forms inside the cell forming a lipid bilayer. In the lipid bilayer, the middle layer is lipid tails while outer and inner are phosphate heads.
The chromosomes in the sex cells would be half the chromosomes in the body cells; so since each body cell has 40 <span>chromosomes and half of that is 20, there's your answer. It's B. 20</span>
