Answer:
Plasticity.
Explanation:
Brain is the most important organ of the body as it regulates the other system of the body as well. The three main divisions of brain - forebrain, midbrain and hindbrain.
The brain shows the feature known as plasticity that determines the ability of the brain to change its structure and function depending upon the external and internal environment of the body. The plasticity is also helpful to maintain the normal physiology of the body.
Thus, the answer is plasticity.
