- Grade 11 and 12 Mathematics (Moderator: geoffrey)
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Author Question: In a certain city, the cost of a taxi ride is computed as follows: There is a ... (Read 134 times) |
- Grade 11 and 12 Mathematics (Moderator: geoffrey)
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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.
A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.