The value of the protozoa in nature and human life.

1. Provide the circulation of substances in nature
2. Used in the manufacture of medicines
3. Are the causative agent of diseases
4. Cleanse reservoirs
5. Form sedimentary rocks

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.