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Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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There are more sensory neurons in the tongue than in any other part of the body.

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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.

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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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In 1864, the first barbiturate (barbituric acid) was synthesized.

Basal cell Basal cell
The Sleep/Waking Flip-Flop According to Saper et al. (2001), the major sleep-promoting region (the v The Sleep/Waking Flip-Flop According to Saper et al. (2001), the major sleep-promoting region (the v
A Layer Based on Electrical Properties: The Ionosphere A Layer Based on Electrical Properties: The Ionosphere
Diagram of a cell membrane. The cell membrane is a double layer of phospholipid molecules with ... Diagram of a cell membrane. The cell membrane is a double layer of phospholipid molecules with ...
As shown in the figure, a large open tank contains a layer of oil ( density 450 kg/m3) floating ... As shown in the figure, a large open tank contains a layer of oil ( density 450 kg/m3) floating ...
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
Video: Bipolar Disorder

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