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.
Wandering Albatrosses are colonial but have large widely spaced territories. Here a pair performs th
The muscle segment, muscle segment with sarcomere, and relaxed and contracted sarcomeres.
Ileal conduit. A segment of ileum is separated from the small intestine and formed into a tubular ...
Find the derivative by using the quotient rule.
The structural genes of the lac operon are transcribed into a single polycistronic mRNA
Transfer of endosymbiont genes to the nuclear genome and destinations of encoded protein products