« previous next »
« previous next »
 

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

The Atmosphere’s Oxygen Came from PhotosyntheticOrganisms The Atmosphere’s Oxygen Came from PhotosyntheticOrganisms
William Kentridge, History of the Main Complaint. William Kentridge, History of the Main Complaint.
The relation between the physical and perceptual dimensions of sound. The relation between the physical and perceptual dimensions of sound.
Weather maps: Pictures of the atmosphere Weather maps: Pictures of the atmosphere
Volcanoes eject reflective aerosols into the atmosphere Volcanoes eject reflective aerosols into the atmosphere
In plant fossils, stomatal density is used to estimate CO2 concentration in the atmosphere In plant fossils, stomatal density is used to estimate CO2 concentration in the atmosphere
Video: Exocytosis - secretion

For a complete list of videos, visit our video library