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Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Did you know?
Excessive alcohol use costs the country approximately $235 billion every year.
Did you know?
Your heart beats over 36 million times a year.
Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Did you know?
Cyanide works by making the human body unable to use oxygen.