« previous next »
« previous next »
 

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

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

Rover exposes silica-rich dust on Mars Rover exposes silica-rich dust on Mars
Dust Mite Dust Mite
Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut
In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai
American Foreign Trade, 1790–1812 American Foreign Trade, 1790–1812
New Yorkers flee from the dust caused by the collapse of the twin towers of the World Trade Center f New Yorkers flee from the dust caused by the collapse of the twin towers of the World Trade Center f
Video: Negative Feedback Regulation of Blood Pressure

For a complete list of videos, visit our video library