For vina, cigarettes reduce feelings of tension and anxiety. because of her heavy smoking, however, she has a bad morning cough and breathing difficulties. how can the principles of operant conditioning to explain the development and continuation of vina's self-defeating smoking habit.

Vina's smoking behavior is continuing because of the side effectsof smoking (e.g., the stimulant effects of nicotine, such as stress relief, a sense of well being, alertness, and decreased appetite) outweigh her health impairments (a bad morning

cough and breathing difficulties).

bacteria – a word that often brings out a sense of uneasiness in most of us are, in fact, one of the earliest forms of life. it can be quite unnerving to know that there are bacteria all over your skin, hair, and even inside the body. but only a few species of bacteria are dangerous. the majority of bacteria are good, and without them, life on earth wouldn’t be possible. let’s learn more about how are bacteria essential for you to survive.

c. taught scientists many new things about the earth, but not other planets.

explanation: