« previous next »
« previous next »
 

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Cell-wall structure of Gram-positive and Gram-negative bacteria. Cell-wall structure of Gram-positive and Gram-negative bacteria.
negative feedback negative feedback
Organization of Spatial Frequency Organization of Spatial Frequency
A negative feedback loop. A negative feedback loop.
Example of an employee performance evaluation form. Example of an employee performance evaluation form.
Positive and Negative Stereotypes Positive and Negative Stereotypes
Video: ATPase function - membrane transport, contractile proteins and synthesis

For a complete list of videos, visit our video library