- Grade 11 and 12 Mathematics (Moderator: geoffrey)
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Author Question: A university must choose a team of 6 students to participate in a TV quiz show. The students will be ... (Read 181 times) |
- Grade 11 and 12 Mathematics (Moderator: geoffrey)
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.