Gravitational ulcer
a chronic ulcer of the leg with impaired healing because of the dependent position of the extremity and the incompetence of the valves of the varicosed veins; the venous return stagnates and creates hypoxaemia.
See: varicose ulcer.
This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..
This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..
New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away..
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..
Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..