perforation
1. The act of boring or piercing through a part.
2. A hole made through a part or substance.
Origin: L. Perforare = to pierce through
Dictionary > Perforation
Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics – Definition: Heredity and ..
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..
This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..
Learn how the way genes control and determine every aspect of the body. This lesson uses lac operon as an example. ..
..
A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..
Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..