What is volatility? What is it due to?

Variability is the body’s ability to change its characteristics, it depends on the genotype and environmental impact. Variability is the result of the interaction of the genotype with the environment. The ability of an organism to change under the influence of the environment ensures its adaptation to the conditions of existence.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.