Did you know?
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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.
Mechanism of transport by a transporter, also called a carrier.
Some male birds and mammals congregate in communal courting grounds called leks.
The anterior pituitary is sometimes called the master gland because it secretes many hormones that r
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
One indication of the remarkable transformation of Harlem is town hall meetings. This one was held ...
Connective Tissue Fibers