Keen
William W., U.S. Surgeon, 1837-1932.
See: keens operation, keens sign.
Dictionary > Keen
You will also like...
Sigmund Freud and Carl Gustav Jung
In this tutorial, the works of Carl Gustav Jung and Sigmund Freud are described. Both of them actively pursued the way h..
Digestion and Absorption of Food
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..
Growth Patterns
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..
New Zealand’s Unique Flora
If New Zealand has lots of unique animals, it's also got a whole lot of unique plants. Find out more about some of them,..
Early Mammals on Earth
The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..
Biological Viruses
Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...