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Did you know?
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Did you know?
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.