Answer: 3. variable ratio
Options:
1. fixed interval
2. fixed ratio
3. variable ratio
4. variable interval
Explanation: The variable ratio of reinforcement uses rewards to create a high and steady rate of response. The rate of reward for a target behavior is unpredictable so the rat does not know when its response will get a reward. It will keep responding until the reward is delivered.
The options listed above are schedules of reinforcement. They are schedules used in rewarding target behavior in Operant conditioning.
It's called the proboscis
Answer:
"We face the very real threat of a withering pandemic
Explanation:
Answer: The Monroe Doctrine was a United States policy that was introduced on December 2, 1823.The Monroe Doctrine became the cornerstone of America's
foreign policy for almost 100 years. It also enabled the
nations of Latin America to pursue policies free from the European influences. However, it has also created some problems with certain Latin American countries who feel that America's self-appointed "big brother" status is unwarranted.
It was supposed to be January 30th, Monday.