A scientist conditions a dog to salivate in response to the sound of a high-pitched tone. The researcher then presents a low-pitched tone. The dog fails to salivate. The dog is demonstrating:

discrimination

Explanation: Discrimination in the context of conditioning refers to the the ability of an individual or animal to distinguish between a conditioned stimulus which requires the animal to give a signal when heard and other similar stimulus which when heard does not evoke a signal.

In the scenario above, the dog was conditioned to salivate in response to the sound of a high-pitched tone, which is the conditioned stimulus, Therefore, the failure of the dog to salivate upon hearing the sound of a low-pitched tone shows the dog has distinguished or made a distinction between a low and a high pitched sound.

answer; cognitive dissonance;

the words "interested" and "interesting" are in the same word group as they are based in the noun "interest". however, their meanings are very different.

"interesting" is an active adjective, meaning that it causes interest.

"interested" is a passive adjective, meaning that it has interest for something.

a clear example can be "i am interested in this book, the book is really interesting."

generally speaking, an active adjective can end in -ing, and those will be adjectives causing a reaction or emotion. other examples of active adjectives are: boring, exciting, annoying, exhausting.

a passive adjective may end in -ed, and those will be describing the noun that is receiving the action. other examples of passive adjectives are: bored, excited, annoyed, exhausted.