plaque
(Science: dentistry) dental plaque is a combination of food (left in the mouth after eating), bacteria (which live in the mouth) and bacterial byproducts (acidic wastes). These acidic wastes can break down the tooth enamel leading to tooth decay.
Plaque also irritates the gum tissue (see gingivitis) and eventually destroys periodontal tissue, promoting periodontal disease.
Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..
This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..
Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..
This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..