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Did you know?
Your heart beats over 36 million times a year.
Did you know?
The FDA recognizes 118 routes of administration.
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If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Did you know?
Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
![The phosphorus cycle. Numbers are 1012 g P or fluxes as 1012 g P per year (data from Schlesinger 199](https://biology-forums.com/gallery/47/medium_33_17_02_12_7_02_17_2037874.jpeg)
![Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers](https://biology-forums.com/gallery/47/medium_376021_22_08_15_1_40_22_223511856.jpeg)