Stone tools enabled our ancestors to butcher meat more quickly and efficiently, thereby providing higher quantities of protein for the developing brain and influencing the direction of our physical adaptation. this demonstrates the intimate connection between

Nature and nurture

Explanation:

Nature and nurture are the hot topics and that contribute to the development of a person psychologically, socially, and environmentally. It is known that many of the characteristics are determined by genetically.

These characteristics are hair color, eye color, physical characteristics. These characteristics are called nativism. The internal characteristics that are determined by the environment, socially and by peers, family, etc. are called empiricism. Both nature and nurture have a big role in developing the characteristics of a person.  

Thus in the above context whatever the ancestor has done, they have done through our physical adaptation and our nature and nurture characteristics.

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.