The correct answer is B. It becomes gradually weaker
Explanation:
A stimulus refers is an object, sound, situation, etc. that causes a reaction or response, in terms of behavior or reaction, for example, in the case presented the sound of the bell paired with the food causes the dog to salivate, which is reinforced if the stimulus is presented multiple times. However, if the stimulus that leads to the response disappears the response will also disappear over time; therefore, if the bell is presented without food (stimulus) the response will become gradually weaker and therefore the dog will stop salivating.
The Silk Road is a network of trade routes between China and lands but im not sure if its to lands to the West
Answer:
plants
Explanation:
plants need carbon dioxide to survive, so if they cant take Co2 they cant make oxygen meaning no human life.