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Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Micrographs of nerve cells taken with different types of light microscopes. Micrographs of nerve cells taken with different types of light microscopes.
The locations of genetic material in animal and plant cells. The locations of genetic material in animal and plant cells.
Eukaryotic Cells Eukaryotic Cells
An electrocardiogram (ECG, EKG) is a commonly used procedure in which the electrical events associat An electrocardiogram (ECG, EKG) is a commonly used procedure in which the electrical events associat
Comparison between eukaryotic and prokaryotic cells Comparison between eukaryotic and prokaryotic cells
Regulation of fatty acid synthesis in animal cells Regulation of fatty acid synthesis in animal cells
Video: Glycolysis - and oxygen

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