Answer/Explanation:
An irrigation system represents a stable food supply because it is how they controlled water to be able to plant crops. A second most important artifact that is in the category of stable food supply is the plow. Agriculture produced enough food that people became free to pursue interests other than worrying about what they were going to eat that day.
Answer:
A. biological.
Explanation:
Psychology can be studied from many different perspectives. The biological perspective of studying psychology gave importance to genetics and the physical nature of human beings and animals. It is the study of human behavior that examines the nervous system, hormonal system or immune system. It is also called bio-psychology and it was the first perspective to use human genetics as the bases to study human behavior. Charles Darwin used this approach to study the role of genetics and its relation to human behavior.
As per the question, the study of testosterone and estrogen which are hormones signifies it as a study from a biological perspective.
<span>In America’s version of federalism, power is shared b</span>etween the state and federal governments.
Answer: the third one
Explanation:
They would have to help them because they are still people and citizens of the United States
The answer to the question stated above is: letter D The impact of European colonialism in the Americas similar to its impact on Africa from the fifteenth to eighteenth centuries is that Colonialism resulted in widespread deaths from disease in both locations.
