In this example, john's whistling is serving as a discriminative stimulus.
This procedure, studied by Ivan Pavlov, shows a stimulus ( in this case the action of John's whistling) and a response ( the cattle run to the food trough).
Pavlov studied it with dogs. He realised that when a trainer fed them, dogs salivated. So, he presented the dogs with a "stimulus" ( the sound of a metronome) and when he gave the dogs food. After a few repetitions, when the dog listened to the stimulus, it salivated.
a few cities are Balochistan and Punjab and Jiangxi.
Answer:
shaman
Explanation:
For the Olmecs, a shaman was a spiritual leader who was able to cross spiritual dimensions and kingdoms and make contact with the spirits of the ancestors and with the spirits of nature. Shamans had supernatural powers and were highly respected within civilization. They received offerings constantly, which allowed them to not need to plant and could travel constantly, to improve their powers.
The shamans assumed the position of priest, healer, musician and poet.
Answer:The modern communal pop extravaganza known as the Super Bowl halftime show can trace its roots to Jan. 31, 1993, when Michael Jackson took the stage at the Rose Bowl for Super Bowl XXVII, where the Dallas Cowboys would trample the Buffalo Bills, 52-17.
Explanation: Thats It If Am Wrong
the President is responsible for implementing and enforcing laws ,so the head of federal agencies are appointed.