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?
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.
Regulation of heat exchange in the skin.
Overview of gas exchange between the environment, blood, and cells.
Gas exchange occurs at the alveolar capillary membrane.
Rate enhancement by entropy reduction
A bus starts from restat a station and accelerates at a rate of 2 m/s^2 for 15 seconds. It then runs
The age-adjusted rate of melanoma, a deadly form of skin cancer, from 1973 to 2000. Over that time p