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Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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There are more bacteria in your mouth than there are people in the world.

Electronmicrograph showing a blood clot composed of fibrin, red blood cells, and tissue debris. Electronmicrograph showing a blood clot composed of fibrin, red blood cells, and tissue debris.
Laparoscopy. A lighted endoscope specialized for insertion into the abdomen, called a laparoscope, i Laparoscopy. A lighted endoscope specialized for insertion into the abdomen, called a laparoscope, i
Colon with diverticulosis. An inflamed or infected diverticulum is called diverticulitis. Colon with diverticulosis. An inflamed or infected diverticulum is called diverticulitis.
The upper intake manifold, often called a plenum, attaches to the lower intake manifold. The upper intake manifold, often called a plenum, attaches to the lower intake manifold.
With the research technique called brainbow, each neuron is labeled with a different color, ... With the research technique called brainbow, each neuron is labeled with a different color, ...
A thin cleft, called the synapse, separates one cell from another. A thin cleft, called the synapse, separates one cell from another.
Video: Double Stranded DNA Molecule Animation

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