A change in the color of the wool of the hare in the fall and spring is an example of the manifestation of variability

Color change occurs under the influence of the environment and is developed as an adaptation to the environment, which means that modification variability

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.