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Did you know?

Your heart beats over 36 million times a year.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

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.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

St. John's Water Dog (Extinct) St. John's Water Dog (Extinct)
Microscopic photo taken by Opportunity showing a gray hematite concretion, indicative of the past pr Microscopic photo taken by Opportunity showing a gray hematite concretion, indicative of the past pr
Large families on U.S. farms used to be common. Children helped plant and harvest crops, take care ... Large families on U.S. farms used to be common. Children helped plant and harvest crops, take care ...
Stable oxygen isotopes in water Stable oxygen isotopes in water
Plant Breeding versus Genetic Engineering Plant Breeding versus Genetic Engineering
Shoot meristems in plant growth Shoot meristems in plant growth
Video: Oxygen - hemoglobin dissociation curve & Hemoglobin's affinity with oxygen - acidity

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