« previous next »
« previous next »
 

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Tense laid back ear position indicating unhappiness. Mouth and lips are also tense, which may indica Tense laid back ear position indicating unhappiness. Mouth and lips are also tense, which may indica
A partially submerged alligator displaying a typical ambush position A partially submerged alligator displaying a typical ambush position
Position for Otoscopic Examination Position for Otoscopic Examination
Balmer Lines in the Spectrum of a Star Balmer Lines in the Spectrum of a Star
The anatomical position The anatomical position
Changes position of the polar jet stream Changes position of the polar jet stream
Video: Ciliate conjugation Animation

For a complete list of videos, visit our video library