Pavlov, the researcher who studied classical conditioning, rang a bell every time he fed his dogs. At first the dogs drool in response to the food, but eventually began to drool in response to the bell alone (with or without the food). In this example, the food is the stimulus, and the bell is the stimulus.

a non-neutral or unconditioned stimulus

neutral stimulus

Explanation:

Ivan Pavlov developed a theory known as Classical conditioning. it is when two stimuli are linked together to produce a new learned response.

Ivan conducted a research with dogs. he demonstrated how the presence of food (stimulus) would lead to the dog salivating. salivation is known as an unconditioned response. When he gave the dogs food, he rang a bell. after a period, ringing the bell led the dogs to salivate. the bell is a neutral stimulus.

this statement is true.

forests are public goods, available for everybody. when usage of such a good becomes interesting for consumers and its usage increases, there can be a risk of overexploitation. it is a non rival good therefore, if one person consumes the good it does not reduce the availability for subsequent consumers.

these caracteristics require the establishment of measures in order to prevent the destruction of a commonly owned space, for example, to restrict the amount of people that have access to the same time.