Did you know?
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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.
Rhytidoplasty. This is a common form of plastic surgery in which the skin is pulled and sutured to d
Steps in determining the structure of sperm whale myoglobin by x-ray crystallography
Human Sperm greatly enlarged
An old concept of genetic transmission—a homunculus in a sperm cell.
Decrease in Fertility, 1800–1900
United States, southwestern and southern states are suffer from a significant decrease in rainfall