- Grade 11 and 12 Mathematics (Moderator: geoffrey)
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Author Question: If (a, 3) is a point on the graph of y = 2x - 5, what is a? (Read 170 times) |
- Grade 11 and 12 Mathematics (Moderator: geoffrey)
The average office desk has 400 times more bacteria on it than a toilet.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.