Answer:
Everyone has a chance of being superior, gender doesn't matter, the smartest would win.
A.The Roman empire relied on physical features as natural barriers.
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.
Answer: Artists use different mediums to make art, and they often specialize in a particular medium throughout their careers, although their style might change over time.
Explanation:
When drawing, they often use ink or pencils. Paintinters use watercolor, acrylic, pastel, and pencils as well. Sculptures are made of glass, stone, clay, aluminum, wood, or any three-dimensional material.
Paintings in watercolor are the kind of medium most often seen.
However, modern art installations have added new mediums. Such is the case of the Korean artist Choi Jeong Hwa. He uses different recycled waste items to build public artworks, like a colossal fish puppet made from plastic bags and buildings made from old doors.
