« previous next »
« previous next »
 

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Biology Is Studied at Many Levels of Organization (Part 1) Biology Is Studied at Many Levels of Organization (Part 1)
Part A - Initiating an action potential Part A - Initiating an action potential
How to find the inverse of any function (Part 2) How to find the inverse of any function (Part 2)
How to add, subtract, multiply, and divide using the rules of significant digits (Part 1) How to add, subtract, multiply, and divide using the rules of significant digits (Part 1)
Catalysis of peptide bond hydrolysis by chymotrypsin (part 1) Catalysis of peptide bond hydrolysis by chymotrypsin (part 1)
How to calculate annuity when compounded semi-annually (Part 1) How to calculate annuity when compounded semi-annually (Part 1)
Video: Origin of organelles Animation

For a complete list of videos, visit our video library