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?
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
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The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
Did you know?
Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.
Traits and trees
Map These Genes (Part 4)
How to factor and solve quadratic trinomials (Part 2)
How to expand a polynomial (Part 2)
Part of a Semantic Network in Long-Term Memory
Several parts of the brain are involved in the interpretation of stress and responses on the part of