Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Did you know?
Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
Did you know?
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
Selected Estrogens and Progestins
Selected Adjuncts to Anesthesia
Vapor Densities of Selected Chemicals
Topic Media
Response of corn selected for high and low oil content over 76 generations
Gel electrophoresis, an essential laboratory technique in biological science research