Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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.
Did you know?
About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
Species of the algal genus Dinobryon not only photosynthesize, but are also efficient predators of b
Dewey and the reformers attacked classes, such as this one, circa 1900, where students sat up straig
Students rated their grandparents on a scale from 1 to 4 based on emotional closeness, time spent ...
Community colleges have opened higher education to millions of students who would not otherwise have ...
With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ...
Sketch the graph using the tables providing. Determine if each function is continuous or ...