« previous next »
« previous next »
 

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Breakdown of pyruvate and the attachment of an acetyl group to CoA Breakdown of pyruvate and the attachment of an acetyl group to CoA
The heme group viewed from the side. This view shows the two coordination bonds to Fe2+ The heme group viewed from the side. This view shows the two coordination bonds to Fe2+
A Recently Discovered Member of the Local Group A Recently Discovered Member of the Local Group
Scientists (group photo) Scientists (group photo)
Group fitness activities geared toward senior citizens can improve their physical strength and ... Group fitness activities geared toward senior citizens can improve their physical strength and ...
Shaking. A form of coarse vibration to a muscle or muscle group. Shaking. A form of coarse vibration to a muscle or muscle group.
Video: Sperm Formation

For a complete list of videos, visit our video library