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Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

The black-capped chickadee is a permanent resident in biomes with harsh winter conditions. The black-capped chickadee is a permanent resident in biomes with harsh winter conditions.
Quadrants of the Left Breast Quadrants of the Left Breast
The pH scale is logarithmic. A low pH indicates acidic conditions, whereas a high pH indicates ... The pH scale is logarithmic. A low pH indicates acidic conditions, whereas a high pH indicates ...
Drosophila life cycle Drosophila life cycle
Examples of Conditions Detected by Prenatal Genetic Screening Methods Examples of Conditions Detected by Prenatal Genetic Screening Methods
Flowering plant life cycle Flowering plant life cycle
Video: Facilitated Diffusion - Glucose transport

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