« previous next »
« previous next »
 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

A magnetically controlled vane phaser. A magnetically controlled vane phaser.
How to plot a sine function containing an amplitude and phase shift (Question 1 of 3) How to plot a sine function containing an amplitude and phase shift (Question 1 of 3)
How to write a sine function when given the amplitude, period, and phase shift How to write a sine function when given the amplitude, period, and phase shift
The citric acid cycle controlled by NAD+ and NADH The citric acid cycle controlled by NAD+ and NADH
Blood pressure is controlled by the cardiovascular and kidney systems Blood pressure is controlled by the cardiovascular and kidney systems
Hormonally controlled cycles Hormonally controlled cycles
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library