Answer:
Fixed ratio
Explanation:
A fixed ratio can be understood by looking at the term itself. The term fixed refers to the delivery of rewards regularly schedule. The ratio refers to the responses that are required in response to the reinforcement. The fixed ratio rewards can be delivered after every eight responses.
The result can be high.
The steady response until the reinforcement is delivered.
Answer:
Ghana, Mali, and Songhai were three of the greatest western African trading states. Beginning with Ghana as early as 300 c.e. and ending with the conquest of the Songhai by Morocco in the 16th century c.e., they dominated the trade of gold, salt, and merchandise between North Africa and sub-Saharan Africa.
Explanation:
Ghana, Mali, and the Songhai Empire all had trade in common as the primary lifeblood of their civilizations. A succession of three great kingdoms came to power as their people, gained control of valuable trade routes in West Africa. Ghana was the first of these empires, followed by the kingdoms of Mali and Songhai. Historians think the first people in Ghana were farmers along the Niger River.
The correct answer is hidden curriculum.
Hidden curriculum refers to unintentional learning and knowledge that students gain from being part of their school. For instance, a student might learn how to be a good team player, cultivate a good work ethic, wait for their turn, good behavior, manners and conduct at school, even though it is not explicitly or formally taught to them. Furthermore, through hidden curriculum children learn norms, values and beliefs dominant in the society they live in.
An item would change owners many times and travel a little bit with each one of them before reaching its final buyer.
Parents can differentiate the severity and intensity of their infant's cries.
