Hich statement about the effects of nicotine use is true? Nicotine has no effect on brain chemistry. Nicotine has to be used for years before there are physical effects. Nicotine is not a mood enhancer. Nicotine is a chemical that alters how an individual feels.

Nicotine is not a mood enhancer. Nicotine is a chemical that alters how an individual feels.

Explanation:

I think these two statements are true, since nicotine generates a state of addiction to the person, and calms the temporary anxiety of the person, but it does not improve the mood in the long term, but it is in the period of consumption of the cigarette, after this the levels of anxiety and addiction increase over time.

Nicotine is considered addictive and an anxiolytic stimulant.

On the other hand, it triggers potentially malignant lesions throughout the body, mainly in the airways, and the oral mucosa, since in the latter the smoke impacts on it and leukoplastic areas usually appear where there is more contact with smoke or cigarettes.

On the other hand, it affects the respiratory tract in its effectiveness, and the cardiovascular system, promoting hypertension, stroke, thrombosis both superficial and deep, and enlanteans or alters the first line of defense of the immune response.

At the dental level, it encourages spirochetal infections that grow in strict anaerobic, humid environments, with temperatures a little higher than 37 degrees Celsius.

the answer is a. mindy is leading by example. hope this .