A biology teacher wished to demonstrate to his students the
harmful effects of alcohol on living organisms.
For his experiment, he showed them a beaker with pond water
in which there was a thriving civilization of worms.
When he added some alcohol into the beaker the worms doubled-up and died.
"Now," he said,” what do you learn from this?"
An eager student gave his answer.
"Well the answer is obvious," he said " if you drink alcohol,
you'll never have worms."
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