Although possible, it is rare to have keratosis pilaris all over the body. The lesions in keratosis pilaris most characteristically involve the back of the upper arms. Other common locations include the back, thighs, buttocks and occasionally the face. It does not affect the eyes, mouth, palms, or soles. Read Doctor's View.
The Principle of Biological Succession was developed by: Charles Darwin James Hutton Charles Lyell William Strata Smith. The principle of biological succession was developed by: Charles Darwin.
Lesson Summary. Biological development occurs in an organized, sequential order. This is similar to the steps you would take to complete any task, such as doing your laundry. There are three principles of growth and development: the cephalocaudal principle, the proximodistal principle, and the orthogenetic principle. These predictable patterns of growth and development allow us to predict how and when most children will develop certain characteristics.