How does the environment affect the manifestation of the trait? Give examples.

Each organism develops and lives in certain conditions, experiencing the effects of various environmental factors – temperature, light, humidity, quantity and quality of food; in addition, it enters into relationships with other organisms of its own and other species. All these factors can change the morphological and physiological properties of organisms, i.e., their phenotype.
If you pluck white hair from a Himalayan rabbit on your back and apply a cold bandage, black hair will grow in this place. If black wool is removed and a warm bandage is applied, white wool will grow. When growing a Himalayan rabbit at a temperature of +30 ° C, all his hair will be white. The offspring of two such white rabbits, raised under normal conditions, will have the usual pigment distribution.

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.