« previous next »
« previous next »
 

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Medication errors are three times higher among children and infants than with adults.

A detailed look at the steps of the citric acid cycle A detailed look at the steps of the citric acid cycle
Acetoacetic acid Acetoacetic acid
Three active forms of vitamin A: all-trans-retinol, -retinal, and –retinoic acid Three active forms of vitamin A: all-trans-retinol, -retinal, and –retinoic acid
How many sigma bonds and how many pi bonds are in this molecule? How many sigma bonds and how many pi bonds are in this molecule?
Nine $10 000, 4% bonds with interest payable semi-annually and redeemable at par are purchased ... Nine $10 000, 4% bonds with interest payable semi-annually and redeemable at par are purchased ...
Four bacterial amino acid operons with attenuator control of transcription Four bacterial amino acid operons with attenuator control of transcription
Video: Haustral churning, Gastrocolic reflex and mass peristalsis & Defecation

For a complete list of videos, visit our video library