Answer:variable - interval
Explanation: In the this scenario, The humanities instructor is using a variable-interval schedule of reinforcement. The instructor used the word 'surprise' meaning the time and date of the test isn't fixed and the quizzes will come up at unpredictable time intervals. This kind of reinforcement results in a steady response rate as it keeps students on their toes simply due to the fact that they have no idea of when the quizzes are coming up.
Any options? could be active ?
They had improved ship designs, navigation accuracy and cannons as well as joint stock companies
Answer:
a. People work together to get the things they need
Explanation:
Specialization, which is the practice whereby different individuals do things they are good at individually at a given point in time is a practice tht has been in existence from time immemorial. <em>For the community in question, specialization of labour in the early communities helps them to work together in-order to get things they needed done on time as well as protect themselves from harm.</em>
