What is the advantage of phospholipid bilayer's fluidity ?

Explanation

### Step-by-Step Solution:

1. **Understanding Phospholipid Bilayer**:
- The phospholipid bilayer is a fundamental component of cell membranes, consisting of two layers of phospholipids. Each phospholipid molecule has a hydrophilic (water-attracting) "head" and two hydrophobic (water-repelling) "tails".

2. **Fluidity of the Bilayer**:
- The fluidity of the phospholipid bilayer refers to the ability of the lipids and proteins within the membrane to move laterally. This fluid nature is crucial for the functionality of the cell membrane.

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