« previous next »
« previous next »
 

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Tubule permeabilities and concentrations of the filtrate in the loop of Henle and collecting duct. Tubule permeabilities and concentrations of the filtrate in the loop of Henle and collecting duct.
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
A negative feedback loop. A negative feedback loop.
Is it ethical to break the law to defend our personal integrity? Is it ethical to break the law to defend our personal integrity?
Meander Loop on the Colorado River Meander Loop on the Colorado River
A closed loop conductor that forms a circle with a radius of is located in a uniform but ... A closed loop conductor that forms a circle with a radius of is located in a uniform but ...
Video: The Nerve Impulse

For a complete list of videos, visit our video library