The following are short term effects of tobacco EXCEPT:

A. Dulled taste buds
B. Bad breath
C. Yellowed teeth
D. Nicotine addiction
E. Weakened immune system

E. Weakened immune system

To determine the correct answer, we need to analyze each option and eliminate the ones that are valid short-term effects of tobacco. Let's break down each option and examine them:

A. Dulled taste buds: This is a known short-term effect of tobacco use. Smoking can diminish your ability to taste and appreciate flavors.

B. Bad breath: Another short-term effect of tobacco use. Smoking can cause bad breath due to chemicals and particles left in the mouth and throat.

C. Yellowed teeth: Also a short-term effect of tobacco use. Tobacco contains tar and other substances that can stain the teeth, resulting in a yellowing appearance.

D. Nicotine addiction: Nicotine addiction is a long-term effect of tobacco use rather than a short-term effect. Becoming addicted to nicotine can happen over time with regular use of tobacco products.

E. Weakened immune system: This is a short-term effect of tobacco use. Smoking harms the immune system, making it more difficult for the body to fight off infections and illnesses.

Considering the above analysis, we can conclude that the correct answer is D. Nicotine addiction. It is the only option that is not a short-term effect of tobacco use.

The short term effects of tobacco include dulled taste buds, bad breath, yellowed teeth, and nicotine addiction. The correct answer is E. Weakened immune system.