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?
The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.
How phytochrome acts as a molecular light switch.
Negative feedback as a mechanism by which homeostatic control systems operate.
Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
The Speed of Light Is Constant
Color mixtures of refracted light—additive process.
A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 relative ...