« previous next »
« previous next »
 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Multiple crossovers can include more than two chromatids Multiple crossovers can include more than two chromatids
muscles whole body muscles whole body
The major human endocrine glands and their central nervous system control centers The major human endocrine glands and their central nervous system control centers
Protein Needs Are Determined by Nitrogen Balance in Your Body Protein Needs Are Determined by Nitrogen Balance in Your Body
Human Thyroid and Parathyroid Glands Human Thyroid and Parathyroid Glands
Body plan of an aquatic snail and micrograph of a radula. Body plan of an aquatic snail and micrograph of a radula.
Video: Photosynthesis overview Animation

For a complete list of videos, visit our video library