Mass media has evolved due to the amount of technology updates and more sites, along with better data plans. and the reason media needs to be correct, because if it's not correct certain people could lose votes. And if it's not accurate lies and rumors could be spread and make the better person lose votes.
Advances were made in medicine and technology
The Polar regions help regulate Earth's climate.
The correct answer is d. A conditioned response.
Ivan Pavlov was a Russian scientist interested in studying how digestion works in mammals. According to Pavlov, the dogs were demonstrating a conditioned response. He explained it like this: there's a neutral stimulus (the bell), which by itself will not produce a response, like salivation. There's also a non-neutral or unconditioned stimulus (the food), which will produce an unconditioned response (salivation).
