« 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?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

An orange-red biohazard symbol indicates that bloodborne pathogens may be present, and items should ... An orange-red biohazard symbol indicates that bloodborne pathogens may be present, and items should ...
Linking step between glycolysis and the Krebs cycle. Linking step between glycolysis and the Krebs cycle.
A symbol used on a Chrysler vehicle indicating a fault with the electronic throttle control. A symbol used on a Chrysler vehicle indicating a fault with the electronic throttle control.
The cross-linking reaction in peptidoglycan synthesis (left) and inhibition of the transpeptidase The cross-linking reaction in peptidoglycan synthesis (left) and inhibition of the transpeptidase
Fifth Root Symbol Fifth Root Symbol
Strings of frog eggs Strings of frog eggs
Video: Photosynthesis overview Animation

For a complete list of videos, visit our video library