- Grade 11 and 12 Mathematics (Moderator: geoffrey)
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Author Question: Regrind, Inc. regrinds used typewriter platens. The variable cost per platen is ... (Read 27 times) |
- Grade 11 and 12 Mathematics (Moderator: geoffrey)
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.