Answer:
They made tools from stone
Dr. Jackson supports the biological model that shows how psychological disorders and hormonal imbalance can be inherited through genes. Genetics can open susceptibility through the chemical combinations in the body that can be studied and controlled with proper professional treatment.
D. Germany's invasion of Belgium.
The only President during world war 2 was Franklin D Roosevelt, but after he died his vice pres took over. But that might be what they’re referring to- just put Franklin.
