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Did you know?
The human body produces and destroys 15 million blood cells every second.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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There are 20 feet of blood vessels in each square inch of human skin.
![Hyperopia (farsightedness). In the uncorrected top figure, the image would come into focus behind th](https://biology-forums.com/gallery/47/medium_14755_27_08_12_12_24_59_82001466.jpeg)
![(A) In hyperopia, light rays focus behind the retina, making it difficult to focus on objects at ...](https://biology-forums.com/gallery/30/medium_548020_08_06_17_6_38_46_305761211.jpeg)