« previous next »
« previous next »
 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Shape changes in molecules Shape changes in molecules
SICKLE SHAPE SICKLE SHAPE
This graphic illustrates the original systems model of politics advanced by David Easton. Politics This graphic illustrates the original systems model of politics advanced by David Easton. Politics
Example of a choice board used in studies of decision making. This one includes four factors for ... Example of a choice board used in studies of decision making. This one includes four factors for ...
Queen Nefertari Making an Offering to Hathor Queen Nefertari Making an Offering to Hathor
Side view of a jumping spider making a leap Side view of a jumping spider making a leap
Video: Glycolysis Animation

For a complete list of videos, visit our video library