regurgitation (Science: cardiology, gastroenterology) A backward flowing, as the casting up of undigested food or the backward flowing of blood into the heart or between the chambers of the heart when a valve is incompetent. Origin: L. Gurgitare = to flood..
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..
It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
Learn how the way genes control and determine every aspect of the body. This lesson uses lac operon as an example. ..
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The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..
