Did you know?
For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
An example of anatomical homology: homologous structures found in vertebrates.
An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina.
(c) snow in Nunavut, alter the local albedo, causing altered microclimates. High albedos are found
Three of the color variants found at Fossil Rim Wildlife Center in Texas
Types of supercoiling found in chromosomes
A fictional element named Nivadium is found to have three naturally occurring is