Answer:
In heterogeneous mixtures, two or more ingredients intermingle or in simpler words mix, but remain physically separate. Often it is possible to separate the original ingredients by physical means, such as filtering.
Explanation:
I think its A or C but i'm leaning towards A more then C
Answer:
Extinction
Explanation:
In terms of psychology, extinction refers to the progressive weakening of a conditioned response that results in a reduction or absence of the behavior. it explains why a prior conditioned behavior of an organism would eventually stop and it can be observed in both classical conditioning and operant conditioning. As per the question, the extinction signifies stopping of the saliva of the dog in absence of reinforcement of the behavior.