|
Author Question: Suppose that an economy can produce various combinations of fish and bread. If more people with ... (Read 24 times) |
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.