What are the main factors of racogenesis?

• Natural selection;
• Mutations;
• Insulation;
• Mixing populations.
As a person populates the globe, faced with new environmental conditions, adapted individuals survived and gave birth to offspring. The morphological features formed during biological evolution are explained by:
• nature of the environment;
• climate;
• food resources;
• amount of sunlight.

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.