|
Author Question: Free hydrogen ions combine with _______________ to form ammonium. Fill in the blank(s) with correct ... (Read 45 times) |
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.
In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.