« previous next »
« previous next »
 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Old people Old people
The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha
Work Settings for People Earning Master’s and Bachelor’s Degrees in Psychology Work Settings for People Earning Master’s and Bachelor’s Degrees in Psychology
Holland’s six basic types of people based on vocational interests (attitudes, abilities, and ... Holland’s six basic types of people based on vocational interests (attitudes, abilities, and ...
By the People: A History of the United States, AP Edition By the People: A History of the United States, AP Edition
The lactose (lac) operon of E. coli The lactose (lac) operon of E. coli
Video: Oxygen transport: association and dissociation & Factors that affect hemoglobin's saturation with O2

For a complete list of videos, visit our video library