1. It refers to the period of flaked and polish stone implements. 2. This species first to practice the burial of their dead. 3. It is the earliest form of human society. 4. It is the natural process of biological change occurring in a population across successive generations. 5. This species also known as the "handy man". 6. This species also known as the "upright man". 7. In this society, people learned to use human muscle power and hand held tools to cultivate fields. 8. This is the earliest tools used by pre-human primates. 9. This society was characterized by the used of plow in farming 10. In this cultural development has organized government, law and welfare. pahelp guys