Explain why not all the energy received from food is spent on the growth of the animal.

1) part of the energy is converted into heat and dissipated in space
2) part of the absorbed energy is spent on biosynthesis processes
3) part of the energy is spent on other vital processes (respiration, movement, etc.)

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.