« previous next »
« previous next »
 

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

With their specialized language and activities, surfers are highly recognized as members of a ... With their specialized language and activities, surfers are highly recognized as members of a ...
When does old age begin? And what activities are appropriate for the elderly? From this photo that I ... When does old age begin? And what activities are appropriate for the elderly? From this photo that I ...
The movement of a bolus of food from the mouth to the stomach via the esophagus. The movement of a bolus of food from the mouth to the stomach via the esophagus.
Twelve primary energy channels and the Conception and Governing Vessels of Traditional Chinese ... Twelve primary energy channels and the Conception and Governing Vessels of Traditional Chinese ...
High net primary productivity High net primary productivity
On the Flexible Item Selection Task (FIST) children are presented with three cards On the Flexible Item Selection Task (FIST) children are presented with three cards
Video: Hormonal feedback loop components & Glucagon (glycogenolysis and gluconeogenesis)

For a complete list of videos, visit our video library