« previous next »
« previous next »
 

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

A model genetic system, the fern Ceratopteris richardii A model genetic system, the fern Ceratopteris richardii
Malpighian tubules from the excretory system of an insect. Malpighian tubules from the excretory system of an insect.
General representation of the autonomic nervous system. General representation of the autonomic nervous system.
A central port fuel-injection system. A central port fuel-injection system.
Rapid Eye Movement Rapid Eye Movement
The Global Positioning System determines the location of an object from its distances to ... The Global Positioning System determines the location of an object from its distances to ...
Video: Structure of a Ribosome

For a complete list of videos, visit our video library